51435242451039 has 32 divisors (see below), whose sum is σ = 70237589958144. Its totient is φ = 33471841904640.

The previous prime is 51435242451031. The next prime is 51435242451053. The reversal of 51435242451039 is 93015424253415.

It is not a de Polignac number, because 51435242451039 - 2³ = 51435242451031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51435242451031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23094927 + ... + 25223919.

It is an arithmetic number, because the mean of its divisors is an integer number (2194924686192).

Almost surely, 2^{51435242451039} is an apocalyptic number.

51435242451039 is a deficient number, since it is larger than the sum of its proper divisors (18802347507105).

51435242451039 is a wasteful number, since it uses less digits than its factorization.

51435242451039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130207.

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 51435242451039 in words is "fifty-one trillion, four hundred thirty-five billion, two hundred forty-two million, four hundred fifty-one thousand, thirty-nine".