47691668512 has 48 divisors (see below), whose sum is σ = 94661058240. Its totient is φ = 23651561728.

The previous prime is 47691668509. The next prime is 47691668567. The reversal of 47691668512 is 21586619674.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

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, 1941813 + ... + 1966219.

It is an arithmetic number, because the mean of its divisors is an integer number (1972105380).

Almost surely, 2^47691668512 is an apocalyptic number.

It is an amenable number.

47691668512 is a deficient number, since it is larger than the sum of its proper divisors (46969389728).

47691668512 is a wasteful number, since it uses less digits than its factorization.

47691668512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24913 (or 24905 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 47691668512 in words is "forty-seven billion, six hundred ninety-one million, six hundred sixty-eight thousand, five hundred twelve".