51379842885 has 32 divisors (see below), whose sum is σ = 94030171392. Its totient is φ = 23468313600.

The previous prime is 51379842863. The next prime is 51379842887. The reversal of 51379842885 is 58824897315.

It is not a de Polignac number, because 51379842885 - 2¹² = 51379838789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51379842887) 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, 77614 + ... + 329823.

It is an arithmetic number, because the mean of its divisors is an integer number (2938442856).

Almost surely, 2^51379842885 is an apocalyptic number.

It is an amenable number.

51379842885 is a deficient number, since it is larger than the sum of its proper divisors (42650328507).

51379842885 is a wasteful number, since it uses less digits than its factorization.

51379842885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408653.

The product of its digits is 19353600, while the sum is 60.

The spelling of 51379842885 in words is "fifty-one billion, three hundred seventy-nine million, eight hundred forty-two thousand, eight hundred eighty-five".