51145445011508 has 12 divisors (see below), whose sum is σ = 91586029439520. Its totient is φ = 24978008028792.

The previous prime is 51145445011471. The next prime is 51145445011513. The reversal of 51145445011508 is 80511054454115.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 148678619048 + ... + 148678619391.

It is an arithmetic number, because the mean of its divisors is an integer number (7632169119960).

Almost surely, 2^{51145445011508} is an apocalyptic number.

It is an amenable number.

51145445011508 is a deficient number, since it is larger than the sum of its proper divisors (40440584428012).

51145445011508 is a wasteful number, since it uses less digits than its factorization.

51145445011508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297357238486 (or 297357238484 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 44.

The spelling of 51145445011508 in words is "fifty-one trillion, one hundred forty-five billion, four hundred forty-five million, eleven thousand, five hundred eight".