697714661378 has 24 divisors (see below), whose sum is σ = 1220653198800. Its totient is φ = 298231580808.

The previous prime is 697714661363. The next prime is 697714661389. The reversal of 697714661378 is 873166417796.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9355388 + ... + 9429671.

It is an arithmetic number, because the mean of its divisors is an integer number (50860549950).

Almost surely, 2^697714661378 is an apocalyptic number.

697714661378 is a deficient number, since it is larger than the sum of its proper divisors (522938537422).

697714661378 is a wasteful number, since it uses less digits than its factorization.

697714661378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18785454 (or 18785447 counting only the distinct ones).

The product of its digits is 64012032, while the sum is 65.

The spelling of 697714661378 in words is "six hundred ninety-seven billion, seven hundred fourteen million, six hundred sixty-one thousand, three hundred seventy-eight".