897626376438 has 16 divisors (see below), whose sum is σ = 1958457548736. Its totient is φ = 272007992840.

The previous prime is 897626376431. The next prime is 897626376461. The reversal of 897626376438 is 834673626798.

It is a super-2 number, since 2×897626376438² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897626376431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6800199756 + ... + 6800199887.

It is an arithmetic number, because the mean of its divisors is an integer number (122403596796).

Almost surely, 2^897626376438 is an apocalyptic number.

897626376438 is an abundant number, since it is smaller than the sum of its proper divisors (1060831172298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897626376438 is a wasteful number, since it uses less digits than its factorization.

897626376438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13600399659.

The product of its digits is 438939648, while the sum is 69.

The spelling of 897626376438 in words is "eight hundred ninety-seven billion, six hundred twenty-six million, three hundred seventy-six thousand, four hundred thirty-eight".