51619638247896 has 16 divisors (see below), whose sum is σ = 129049095619800. Its totient is φ = 17206546082624.

The previous prime is 51619638247873. The next prime is 51619638247897. The reversal of 51619638247896 is 69874283691615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51619638247897) 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, 1075409130141 + ... + 1075409130188.

Almost surely, 2^{51619638247896} is an apocalyptic number.

It is an amenable number.

51619638247896 is an abundant number, since it is smaller than the sum of its proper divisors (77429457371904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51619638247896 is a wasteful number, since it uses less digits than its factorization.

51619638247896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150818260338 (or 2150818260334 counting only the distinct ones).

The product of its digits is 940584960, while the sum is 75.

The spelling of 51619638247896 in words is "fifty-one trillion, six hundred nineteen billion, six hundred thirty-eight million, two hundred forty-seven thousand, eight hundred ninety-six".