51402041265 has 8 divisors (see below), whose sum is σ = 82243266048. Its totient is φ = 27414422000.

The previous prime is 51402041261. The next prime is 51402041269. The reversal of 51402041265 is 56214020415.

It is an interprime number because it is at equal distance from previous prime (51402041261) and next prime (51402041269).

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

It is not a de Polignac number, because 51402041265 - 2² = 51402041261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51402041261) 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, 1713401361 + ... + 1713401390.

It is an arithmetic number, because the mean of its divisors is an integer number (10280408256).

Almost surely, 2^51402041265 is an apocalyptic number.

It is an amenable number.

51402041265 is a deficient number, since it is larger than the sum of its proper divisors (30841224783).

51402041265 is a wasteful number, since it uses less digits than its factorization.

51402041265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426802759.

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 51402041265 in words is "fifty-one billion, four hundred two million, forty-one thousand, two hundred sixty-five".