87963513212 has 12 divisors (see below), whose sum is σ = 155790801096. Its totient is φ = 43451855760.

The previous prime is 87963513203. The next prime is 87963513223. The reversal of 87963513212 is 21231536978.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132474839 + ... + 132475502.

It is an arithmetic number, because the mean of its divisors is an integer number (12982566758).

Almost surely, 2^87963513212 is an apocalyptic number.

It is an amenable number.

87963513212 is a deficient number, since it is larger than the sum of its proper divisors (67827287884).

87963513212 is a wasteful number, since it uses less digits than its factorization.

87963513212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264950428 (or 264950426 counting only the distinct ones).

The product of its digits is 544320, while the sum is 47.

The spelling of 87963513212 in words is "eighty-seven billion, nine hundred sixty-three million, five hundred thirteen thousand, two hundred twelve".