2051365136507 has 4 divisors (see below), whose sum is σ = 2052918025896. Its totient is φ = 2049812247120.

The previous prime is 2051365136501. The next prime is 2051365136567. The reversal of 2051365136507 is 7056315631502.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2051365136507 - 2⁸ = 2051365136251 is a prime.

It is a super-2 number, since 2×2051365136507² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051365136501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776442713 + ... + 776445354.

It is an arithmetic number, because the mean of its divisors is an integer number (513229506474).

Almost surely, 2^{2051365136507} is an apocalyptic number.

2051365136507 is a deficient number, since it is larger than the sum of its proper divisors (1552889389).

2051365136507 is a wasteful number, since it uses less digits than its factorization.

2051365136507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552889388.

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 2051365136507 in words is "two trillion, fifty-one billion, three hundred sixty-five million, one hundred thirty-six thousand, five hundred seven".