51291422007 has 32 divisors (see below), whose sum is σ = 82770854400. Its totient is φ = 27580320768.

The previous prime is 51291421991. The next prime is 51291422009. The reversal of 51291422007 is 70022419215.

It is not a de Polignac number, because 51291422007 - 2⁴ = 51291421991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51291422009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2850244 + ... + 2868182.

It is an arithmetic number, because the mean of its divisors is an integer number (2586589200).

Almost surely, 2^51291422007 is an apocalyptic number.

51291422007 is a deficient number, since it is larger than the sum of its proper divisors (31479432393).

51291422007 is a wasteful number, since it uses less digits than its factorization.

51291422007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25975.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 51291422007 in words is "fifty-one billion, two hundred ninety-one million, four hundred twenty-two thousand, seven".