15463609940 has 24 divisors (see below), whose sum is σ = 32475926112. Its totient is φ = 6184997280.

The previous prime is 15463609939. The next prime is 15463609981. The reversal of 15463609940 is 4990636451.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493007 + ... + 523433.

It is an arithmetic number, because the mean of its divisors is an integer number (1353163588).

Almost surely, 2^15463609940 is an apocalyptic number.

15463609940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15463609940 is an abundant number, since it is smaller than the sum of its proper divisors (17012316172).

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

15463609940 is a wasteful number, since it uses less digits than its factorization.

15463609940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55847 (or 55845 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The spelling of 15463609940 in words is "fifteen billion, four hundred sixty-three million, six hundred nine thousand, nine hundred forty".