51804383827 has 16 divisors (see below), whose sum is σ = 62496504000. Its totient is φ = 42872585280.

The previous prime is 51804383803. The next prime is 51804383833. The reversal of 51804383827 is 72838340815.

It is not a de Polignac number, because 51804383827 - 2⁷ = 51804383699 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (51804383857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2594074 + ... + 2613967.

It is an arithmetic number, because the mean of its divisors is an integer number (3906031500).

Almost surely, 2^51804383827 is an apocalyptic number.

51804383827 is a deficient number, since it is larger than the sum of its proper divisors (10692120173).

51804383827 is an equidigital number, since it uses as much as digits as its factorization.

51804383827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208091 (or 5208077 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 51804383827 in words is "fifty-one billion, eight hundred four million, three hundred eighty-three thousand, eight hundred twenty-seven".