51940110811 has 8 divisors (see below), whose sum is σ = 53258593248. Its totient is φ = 50624088000.

The previous prime is 51940110809. The next prime is 51940110821. The reversal of 51940110811 is 11801104915.

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

It is a cyclic number.

It is not a de Polignac number, because 51940110811 - 2¹ = 51940110809 is a prime.

It is a super-2 number, since 2×51940110811² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51940110821) 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, 572100 + ... + 656641.

It is an arithmetic number, because the mean of its divisors is an integer number (6657324156).

Almost surely, 2^51940110811 is an apocalyptic number.

51940110811 is a deficient number, since it is larger than the sum of its proper divisors (1318482437).

51940110811 is a wasteful number, since it uses less digits than its factorization.

51940110811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229813.

The product of its (nonzero) digits is 1440, while the sum is 31.

The spelling of 51940110811 in words is "fifty-one billion, nine hundred forty million, one hundred ten thousand, eight hundred eleven".