97402575444 has 24 divisors (see below), whose sum is σ = 227278386048. Its totient is φ = 32466709440.

The previous prime is 97402575407. The next prime is 97402575469. The reversal of 97402575444 is 44457520479.

It is a super-2 number, since 2×97402575444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 575749 + ... + 725459.

It is an arithmetic number, because the mean of its divisors is an integer number (9469932752).

Almost surely, 2^97402575444 is an apocalyptic number.

It is an amenable number.

97402575444 is an abundant number, since it is smaller than the sum of its proper divisors (129875810604).

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

97402575444 is a wasteful number, since it uses less digits than its factorization.

97402575444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203935 (or 203933 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 97402575444 in words is "ninety-seven billion, four hundred two million, five hundred seventy-five thousand, four hundred forty-four".