51642492119 has 8 divisors (see below), whose sum is σ = 54362664240. Its totient is φ = 48922534656.

The previous prime is 51642492059. The next prime is 51642492137. The reversal of 51642492119 is 91129424615.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51642492119 is a prime.

It is a super-2 number, since 2×51642492119² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51642492119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51642492149) 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, 745319 + ... + 811655.

It is an arithmetic number, because the mean of its divisors is an integer number (6795333030).

Almost surely, 2^51642492119 is an apocalyptic number.

51642492119 is a deficient number, since it is larger than the sum of its proper divisors (2720172121).

51642492119 is a wasteful number, since it uses less digits than its factorization.

51642492119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107329.

The product of its digits is 155520, while the sum is 44.

The spelling of 51642492119 in words is "fifty-one billion, six hundred forty-two million, four hundred ninety-two thousand, one hundred nineteen".