97091774464 has 96 divisors (see below), whose sum is σ = 197871055200. Its totient is φ = 47615754240.

The previous prime is 97091774401. The next prime is 97091774471. The reversal of 97091774464 is 46447719079.

It is a junction number, because it is equal to n+sod(n) for n = 97091774399 and 97091774408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95094274 + ... + 95095294.

It is an arithmetic number, because the mean of its divisors is an integer number (2061156825).

Almost surely, 2^97091774464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97091774464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98935527600).

97091774464 is an abundant number, since it is smaller than the sum of its proper divisors (100779280736).

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

97091774464 is a wasteful number, since it uses less digits than its factorization.

97091774464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 97091774464 in words is "ninety-seven billion, ninety-one million, seven hundred seventy-four thousand, four hundred sixty-four".