71629862136 has 128 divisors (see below), whose sum is σ = 224794828800. Its totient is φ = 18545535360.

The previous prime is 71629862131. The next prime is 71629862167. The reversal of 71629862136 is 63126892617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71629862131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414420 + ... + 561251.

It is an arithmetic number, because the mean of its divisors is an integer number (1756209600).

Almost surely, 2^71629862136 is an apocalyptic number.

71629862136 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

71629862136 is an abundant number, since it is smaller than the sum of its proper divisors (153164966664).

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

71629862136 is a wasteful number, since it uses less digits than its factorization.

71629862136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975729 (or 975725 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The spelling of 71629862136 in words is "seventy-one billion, six hundred twenty-nine million, eight hundred sixty-two thousand, one hundred thirty-six".