698694442497 has 48 divisors (see below), whose sum is σ = 1089349672320. Its totient is φ = 430383165696.

The previous prime is 698694442483. The next prime is 698694442507. The reversal of 698694442497 is 794244496896.

It is a happy number.

698694442497 is a `hidden beast` number, since 6 + 9 + 8 + 6 + 94 + 4 + 42 + 497 = 666.

It is not a de Polignac number, because 698694442497 - 2¹⁴ = 698694426113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (698694442097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 736453 + ... + 1392749.

It is an arithmetic number, because the mean of its divisors is an integer number (22694784840).

Almost surely, 2^698694442497 is an apocalyptic number.

It is an amenable number.

698694442497 is a deficient number, since it is larger than the sum of its proper divisors (390655229823).

698694442497 is a wasteful number, since it uses less digits than its factorization.

698694442497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656502 (or 656499 counting only the distinct ones).

The product of its digits is 752467968, while the sum is 72.

The spelling of 698694442497 in words is "six hundred ninety-eight billion, six hundred ninety-four million, four hundred forty-two thousand, four hundred ninety-seven".