51620547727414 has 4 divisors (see below), whose sum is σ = 77430821591124. Its totient is φ = 25810273863706.

The previous prime is 51620547727403. The next prime is 51620547727421. The reversal of 51620547727414 is 41472774502615.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12905136931852 + ... + 12905136931855.

It is an arithmetic number, because the mean of its divisors is an integer number (19357705397781).

Almost surely, 2^{51620547727414} is an apocalyptic number.

51620547727414 is a deficient number, since it is larger than the sum of its proper divisors (25810273863710).

51620547727414 is a wasteful number, since it uses less digits than its factorization.

51620547727414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25810273863709.

The product of its (nonzero) digits is 13171200, while the sum is 55.

The spelling of 51620547727414 in words is "fifty-one trillion, six hundred twenty billion, five hundred forty-seven million, seven hundred twenty-seven thousand, four hundred fourteen".