51585700614 has 16 divisors (see below), whose sum is σ = 117910172928. Its totient is φ = 14738771592.

The previous prime is 51585700591. The next prime is 51585700619. The reversal of 51585700614 is 41600758515.

It is a super-2 number, since 2×51585700614² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1228230967 = 51585700614 / (5 + 1 + 5 + 8 + 5 + 7 + 0 + 0 + 6 + 1 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51585700619) 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, 614115442 + ... + 614115525.

It is an arithmetic number, because the mean of its divisors is an integer number (7369385808).

Almost surely, 2^51585700614 is an apocalyptic number.

51585700614 is an abundant number, since it is smaller than the sum of its proper divisors (66324472314).

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

51585700614 is a wasteful number, since it uses less digits than its factorization.

51585700614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228230979.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 51585700614 in words is "fifty-one billion, five hundred eighty-five million, seven hundred thousand, six hundred fourteen".