70781300051 has 32 divisors (see below), whose sum is σ = 89315965440. Its totient is φ = 54488448000.

The previous prime is 70781300027. The next prime is 70781300053. The reversal of 70781300051 is 15000318707.

It is not a de Polignac number, because 70781300051 - 2⁶ = 70781299987 is a prime.

It is a super-3 number, since 3×70781300051³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70781299990 and 70781300017.

It is not an unprimeable number, because it can be changed into a prime (70781300053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3622115 + ... + 3641603.

It is an arithmetic number, because the mean of its divisors is an integer number (2791123920).

Almost surely, 2^70781300051 is an apocalyptic number.

70781300051 is a deficient number, since it is larger than the sum of its proper divisors (18534665389).

70781300051 is a wasteful number, since it uses less digits than its factorization.

70781300051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075.

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 70781300051 its reverse (15000318707), we get a palindrome (85781618758).

The spelling of 70781300051 in words is "seventy billion, seven hundred eighty-one million, three hundred thousand, fifty-one".