50721134012040 has 64 divisors (see below), whose sum is σ = 152164994866560. Its totient is φ = 13525494151680.

The previous prime is 50721134012009. The next prime is 50721134012053. The reversal of 50721134012040 is 4021043112705.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 50721134011989 and 50721134012007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9559020 + ... + 13885860.

It is an arithmetic number, because the mean of its divisors is an integer number (2377578044790).

Almost surely, 2^{50721134012040} is an apocalyptic number.

It is an amenable number.

50721134012040 is an abundant number, since it is smaller than the sum of its proper divisors (101443860854520).

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

50721134012040 is a wasteful number, since it uses less digits than its factorization.

50721134012040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424542 (or 4424538 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 50721134012040 its reverse (4021043112705), we get a palindrome (54742177124745).

The spelling of 50721134012040 in words is "fifty trillion, seven hundred twenty-one billion, one hundred thirty-four million, twelve thousand, forty".