15630848477 has 4 divisors (see below), whose sum is σ = 15642234300. Its totient is φ = 15619462656.

The previous prime is 15630848353. The next prime is 15630848483. The reversal of 15630848477 is 77484803651.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12853663876 + 2777184601 = 113374^2 + 52699^2 .

It is a cyclic number.

It is not a de Polignac number, because 15630848477 - 2⁸ = 15630848221 is a prime.

It is a super-2 number, since 2×15630848477² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15630848777) 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, 5690852 + ... + 5693597.

It is an arithmetic number, because the mean of its divisors is an integer number (3910558575).

Almost surely, 2^15630848477 is an apocalyptic number.

It is an amenable number.

15630848477 is a deficient number, since it is larger than the sum of its proper divisors (11385823).

15630848477 is a wasteful number, since it uses less digits than its factorization.

15630848477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11385822.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The spelling of 15630848477 in words is "fifteen billion, six hundred thirty million, eight hundred forty-eight thousand, four hundred seventy-seven".