70981957011 has 16 divisors (see below), whose sum is σ = 108256022784. Its totient is φ = 40526228064.

The previous prime is 70981956967. The next prime is 70981957021. The reversal of 70981957011 is 11075918907.

It is not a de Polignac number, because 70981957011 - 2⁹ = 70981956499 is a prime.

It is a super-2 number, since 2×70981957011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70981957021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1428756 + ... + 1477601.

It is an arithmetic number, because the mean of its divisors is an integer number (6766001424).

Almost surely, 2^70981957011 is an apocalyptic number.

70981957011 is a deficient number, since it is larger than the sum of its proper divisors (37274065773).

70981957011 is a wasteful number, since it uses less digits than its factorization.

70981957011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907530.

The product of its (nonzero) digits is 158760, while the sum is 48.

The spelling of 70981957011 in words is "seventy billion, nine hundred eighty-one million, nine hundred fifty-seven thousand, eleven".