97961615445 has 16 divisors (see below), whose sum is σ = 156965429952. Its totient is φ = 52170579840.

The previous prime is 97961615419. The next prime is 97961615447. The reversal of 97961615445 is 54451616979.

It is a happy number.

It is not a de Polignac number, because 97961615445 - 2²⁶ = 97894506581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97961615447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4715232 + ... + 4735961.

It is an arithmetic number, because the mean of its divisors is an integer number (9810339372).

Almost surely, 2^97961615445 is an apocalyptic number.

It is an amenable number.

97961615445 is a deficient number, since it is larger than the sum of its proper divisors (59003814507).

97961615445 is a wasteful number, since it uses less digits than its factorization.

97961615445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451892.

The product of its digits is 8164800, while the sum is 57.

The spelling of 97961615445 in words is "ninety-seven billion, nine hundred sixty-one million, six hundred fifteen thousand, four hundred forty-five".