49871386664 has 32 divisors (see below), whose sum is σ = 102026822400. Its totient is φ = 22664997120.

The previous prime is 49871386633. The next prime is 49871386667. The reversal of 49871386664 is 46668317894.

It is a junction number, because it is equal to n+sod(n) for n = 49871386597 and 49871386606.

It is not an unprimeable number, because it can be changed into a prime (49871386667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515792 + ... + 604800.

It is an arithmetic number, because the mean of its divisors is an integer number (3188338200).

Almost surely, 2^49871386664 is an apocalyptic number.

49871386664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

49871386664 is an abundant number, since it is smaller than the sum of its proper divisors (52155435736).

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

49871386664 is a wasteful number, since it uses less digits than its factorization.

49871386664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95393 (or 95389 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 62.

The spelling of 49871386664 in words is "forty-nine billion, eight hundred seventy-one million, three hundred eighty-six thousand, six hundred sixty-four".