97878808882 has 4 divisors (see below), whose sum is σ = 146818213326. Its totient is φ = 48939404440.

The previous prime is 97878808871. The next prime is 97878808891. The reversal of 97878808882 is 28880887879.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86242656241 + 11636152641 = 293671^2 + 107871^2 .

It is a super-2 number, since 2×97878808882² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24469702219 + ... + 24469702222.

Almost surely, 2^97878808882 is an apocalyptic number.

97878808882 is a deficient number, since it is larger than the sum of its proper divisors (48939404444).

97878808882 is a wasteful number, since it uses less digits than its factorization.

97878808882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48939404443.

The product of its (nonzero) digits is 231211008, while the sum is 73.

The spelling of 97878808882 in words is "ninety-seven billion, eight hundred seventy-eight million, eight hundred eight thousand, eight hundred eighty-two".