51011040270 has 32 divisors (see below), whose sum is σ = 124253762688. Its totient is φ = 13399914528.

The previous prime is 51011040263. The next prime is 51011040271. The reversal of 51011040270 is 7204011015.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51011040271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12687304 + ... + 12691323.

It is an arithmetic number, because the mean of its divisors is an integer number (3882930084).

Almost surely, 2^51011040270 is an apocalyptic number.

51011040270 is an abundant number, since it is smaller than the sum of its proper divisors (73242722418).

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

51011040270 is a wasteful number, since it uses less digits than its factorization.

51011040270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25378704.

The product of its (nonzero) digits is 280, while the sum is 21.

Adding to 51011040270 its reverse (7204011015), we get a palindrome (58215051285).

The spelling of 51011040270 in words is "fifty-one billion, eleven million, forty thousand, two hundred seventy".