707998974917 has 12 divisors (see below), whose sum is σ = 804702015180. Its totient is φ = 619140799872.

The previous prime is 707998974913. The next prime is 707998974923. The reversal of 707998974917 is 719479899707.

It can be written as a sum of positive squares in 2 ways, for example, as 56126821921 + 651872152996 = 236911^2 + 807386^2 .

It is not a de Polignac number, because 707998974917 - 2² = 707998974913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (707998974913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75426692 + ... + 75436077.

It is an arithmetic number, because the mean of its divisors is an integer number (67058501265).

Almost surely, 2^707998974917 is an apocalyptic number.

It is an amenable number.

707998974917 is a deficient number, since it is larger than the sum of its proper divisors (96703040263).

707998974917 is a wasteful number, since it uses less digits than its factorization.

707998974917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150862820 (or 150862801 counting only the distinct ones).

The product of its (nonzero) digits is 504094752, while the sum is 77.

The spelling of 707998974917 in words is "seven hundred seven billion, nine hundred ninety-eight million, nine hundred seventy-four thousand, nine hundred seventeen".