197090005896 has 128 divisors (see below), whose sum is σ = 634495334400. Its totient is φ = 55518281280.

The previous prime is 197090005867. The next prime is 197090005901. The reversal of 197090005896 is 698500090791.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 810610 + ... + 1025313.

It is an arithmetic number, because the mean of its divisors is an integer number (4956994800).

Almost surely, 2^197090005896 is an apocalyptic number.

It is an amenable number.

197090005896 is an abundant number, since it is smaller than the sum of its proper divisors (437405328504).

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

197090005896 is a wasteful number, since it uses less digits than its factorization.

197090005896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836016 (or 1836006 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 197090005896 in words is "one hundred ninety-seven billion, ninety million, five thousand, eight hundred ninety-six".