70491187516 has 12 divisors (see below), whose sum is σ = 127613356920. Its totient is φ = 34030228400.

The previous prime is 70491187513. The next prime is 70491187523. The reversal of 70491187516 is 61578119407.

It is a self number, because there is not a number n which added to its sum of digits gives 70491187516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70491187511) 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, 303841210 + ... + 303841441.

It is an arithmetic number, because the mean of its divisors is an integer number (10634446410).

Almost surely, 2^70491187516 is an apocalyptic number.

It is an amenable number.

70491187516 is a deficient number, since it is larger than the sum of its proper divisors (57122169404).

70491187516 is a wasteful number, since it uses less digits than its factorization.

70491187516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607682684 (or 607682682 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 70491187516 in words is "seventy billion, four hundred ninety-one million, one hundred eighty-seven thousand, five hundred sixteen".