70501015381 has 4 divisors (see below), whose sum is σ = 70583089600. Its totient is φ = 70418941164.

The previous prime is 70501015379. The next prime is 70501015391. The reversal of 70501015381 is 18351010507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70501015381 - 2¹ = 70501015379 is a prime.

It is a super-2 number, since 2×70501015381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70501015391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41035821 + ... + 41037538.

It is an arithmetic number, because the mean of its divisors is an integer number (17645772400).

Almost surely, 2^70501015381 is an apocalyptic number.

It is an amenable number.

70501015381 is a deficient number, since it is larger than the sum of its proper divisors (82074219).

70501015381 is an equidigital number, since it uses as much as digits as its factorization.

70501015381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82074218.

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 70501015381 its reverse (18351010507), we get a palindrome (88852025888).

The spelling of 70501015381 in words is "seventy billion, five hundred one million, fifteen thousand, three hundred eighty-one".