697911643451 has 16 divisors (see below), whose sum is σ = 794748672000. Its totient is φ = 607099627200.

The previous prime is 697911643439. The next prime is 697911643469. The reversal of 697911643451 is 154346119796.

It is not a de Polignac number, because 697911643451 - 2²² = 697907449147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697911643151) 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, 11467751 + ... + 11528448.

It is an arithmetic number, because the mean of its divisors is an integer number (49671792000).

Almost surely, 2^697911643451 is an apocalyptic number.

697911643451 is a deficient number, since it is larger than the sum of its proper divisors (96837028549).

697911643451 is a wasteful number, since it uses less digits than its factorization.

697911643451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22996330.

The product of its digits is 4898880, while the sum is 56.

The spelling of 697911643451 in words is "six hundred ninety-seven billion, nine hundred eleven million, six hundred forty-three thousand, four hundred fifty-one".