97949056842 has 768 divisors, whose sum is σ = 309646540800. Its totient is φ = 22320230400.

The previous prime is 97949056819. The next prime is 97949056853. The reversal of 97949056842 is 24865094979.

97949056842 is a `hidden beast` number, since 97 + 9 + 490 + 56 + 8 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 97949056842.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 969792592 + ... + 969792692.

It is an arithmetic number, because the mean of its divisors is an integer number (403185600).

Almost surely, 2^97949056842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97949056842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154823270400).

97949056842 is an abundant number, since it is smaller than the sum of its proper divisors (211697483958).

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

97949056842 is a wasteful number, since it uses less digits than its factorization.

97949056842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 97949056842 in words is "ninety-seven billion, nine hundred forty-nine million, fifty-six thousand, eight hundred forty-two".