18951610496 has 192 divisors, whose sum is σ = 49053170880. Its totient is φ = 7101167616.

The previous prime is 18951610453. The next prime is 18951610499. The reversal of 18951610496 is 69401615981.

It is not an unprimeable number, because it can be changed into a prime (18951610499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4202675 + ... + 4207181.

It is an arithmetic number, because the mean of its divisors is an integer number (255485265).

Almost surely, 2^18951610496 is an apocalyptic number.

18951610496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18951610496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24526585440).

18951610496 is an abundant number, since it is smaller than the sum of its proper divisors (30101560384).

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

18951610496 is a wasteful number, since it uses less digits than its factorization.

18951610496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4579 (or 4548 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 18951610496 in words is "eighteen billion, nine hundred fifty-one million, six hundred ten thousand, four hundred ninety-six".