47971986102 has 40 divisors (see below), whose sum is σ = 107511722472. Its totient is φ = 15987844800.

The previous prime is 47971986091. The next prime is 47971986103. The reversal of 47971986102 is 20168917974.

47971986102 is a `hidden beast` number, since 4 + 7 + 9 + 7 + 19 + 8 + 610 + 2 = 666.

It is a super-2 number, since 2×47971986102² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47971986103) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1027077 + ... + 1072767.

Almost surely, 2^47971986102 is an apocalyptic number.

47971986102 is an abundant number, since it is smaller than the sum of its proper divisors (59539736370).

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

47971986102 is a wasteful number, since it uses less digits than its factorization.

47971986102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52186 (or 52177 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 47971986102 in words is "forty-seven billion, nine hundred seventy-one million, nine hundred eighty-six thousand, one hundred two".