15490336968 has 40 divisors (see below), whose sum is σ = 43387288230. Its totient is φ = 5163445440.

The previous prime is 15490336919. The next prime is 15490336969. The reversal of 15490336968 is 86963309451.

15490336968 is a `hidden beast` number, since 1 + 5 + 490 + 33 + 69 + 68 = 666.

15490336968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8390926404 + 7099410564 = 91602^2 + 84258^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (15490336969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11951773 + ... + 11953068.

Almost surely, 2^15490336968 is an apocalyptic number.

15490336968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15490336968 is an abundant number, since it is smaller than the sum of its proper divisors (27896951262).

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

15490336968 is a wasteful number, since it uses less digits than its factorization.

15490336968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904859 (or 23904846 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 15490336968 in words is "fifteen billion, four hundred ninety million, three hundred thirty-six thousand, nine hundred sixty-eight".