52987713778 has 8 divisors (see below), whose sum is σ = 79483892400. Its totient is φ = 26493082980.

The previous prime is 52987713761. The next prime is 52987713781. The reversal of 52987713778 is 87731778925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×52987713778² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297208 + ... + 440803.

It is an arithmetic number, because the mean of its divisors is an integer number (9935486550).

Almost surely, 2^52987713778 is an apocalyptic number.

52987713778 is a deficient number, since it is larger than the sum of its proper divisors (26496178622).

52987713778 is a wasteful number, since it uses less digits than its factorization.

52987713778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773912.

The product of its digits is 41489280, while the sum is 64.

The spelling of 52987713778 in words is "fifty-two billion, nine hundred eighty-seven million, seven hundred thirteen thousand, seven hundred seventy-eight".