52478651841 has 32 divisors (see below), whose sum is σ = 87256147968. Its totient is φ = 27255728640.

The previous prime is 52478651777. The next prime is 52478651881. The reversal of 52478651841 is 14815687425.

It is a happy number.

It is not a de Polignac number, because 52478651841 - 2⁶ = 52478651777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52478651881) 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, 1168300 + ... + 1212386.

It is an arithmetic number, because the mean of its divisors is an integer number (2726754624).

Almost surely, 2^52478651841 is an apocalyptic number.

52478651841 is the 132261-st octagonal number.

It is an amenable number.

52478651841 is a deficient number, since it is larger than the sum of its proper divisors (34777496127).

52478651841 is a wasteful number, since it uses less digits than its factorization.

52478651841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49261.

The product of its digits is 2150400, while the sum is 51.

The spelling of 52478651841 in words is "fifty-two billion, four hundred seventy-eight million, six hundred fifty-one thousand, eight hundred forty-one".