6511790451 has 16 divisors (see below), whose sum is σ = 8870183424. Its totient is φ = 4247359584.

The previous prime is 6511790401. The next prime is 6511790459. The reversal of 6511790451 is 1540971156.

It is not a de Polignac number, because 6511790451 - 2⁶ = 6511790387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6511790459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529296 + ... + 541458.

It is an arithmetic number, because the mean of its divisors is an integer number (554386464).

Almost surely, 2^6511790451 is an apocalyptic number.

6511790451 is a deficient number, since it is larger than the sum of its proper divisors (2358392973).

6511790451 is a wasteful number, since it uses less digits than its factorization.

6511790451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16010.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 6511790451 is about 80695.6656270955. The cubic root of 6511790451 is about 1867.3833068127.

The spelling of 6511790451 in words is "six billion, five hundred eleven million, seven hundred ninety thousand, four hundred fifty-one".