70512351481 has 24 divisors (see below), whose sum is σ = 84468173760. Its totient is φ = 58337697600.

The previous prime is 70512351457. The next prime is 70512351527. The reversal of 70512351481 is 18415321507.

It is not a de Polignac number, because 70512351481 - 2⁹ = 70512350969 is a prime.

It is a super-3 number, since 3×70512351481³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70512351481.

It is not an unprimeable number, because it can be changed into a prime (70512351421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135126 + ... + 399103.

It is an arithmetic number, because the mean of its divisors is an integer number (3519507240).

Almost surely, 2^70512351481 is an apocalyptic number.

70512351481 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

70512351481 is a deficient number, since it is larger than the sum of its proper divisors (13955822279).

70512351481 is a wasteful number, since it uses less digits than its factorization.

70512351481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534337 (or 534324 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

Adding to 70512351481 its reverse (18415321507), we get a palindrome (88927672988).

It can be divided in two parts, 7051 and 2351481, that added together give a palindrome (2358532).

The spelling of 70512351481 in words is "seventy billion, five hundred twelve million, three hundred fifty-one thousand, four hundred eighty-one".