97194185540 has 48 divisors (see below), whose sum is σ = 204490841520. Its totient is φ = 38804797440.

The previous prime is 97194185533. The next prime is 97194185563. The reversal of 97194185540 is 4558149179.

97194185540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 692005636 + 96502179904 = 26306^2 + 310648^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42609200 + ... + 42611480.

It is an arithmetic number, because the mean of its divisors is an integer number (4260225865).

Almost surely, 2^97194185540 is an apocalyptic number.

It is an amenable number.

97194185540 is an abundant number, since it is smaller than the sum of its proper divisors (107296655980).

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

97194185540 is a wasteful number, since it uses less digits than its factorization.

97194185540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5352 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 53.

The spelling of 97194185540 in words is "ninety-seven billion, one hundred ninety-four million, one hundred eighty-five thousand, five hundred forty".