102621012480 has 1200 divisors, whose sum is σ = 449540245440. Its totient is φ = 21857402880.

The previous prime is 102621012469. The next prime is 102621012509. The reversal of 102621012480 is 84210126201.

102621012480 is a `hidden beast` number, since 10 + 2 + 621 + 0 + 1 + 24 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1682311650 + ... + 1682311710.

Almost surely, 2^102621012480 is an apocalyptic number.

102621012480 is a gapful number since it is divisible by the number (10) 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 102621012480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224770122720).

102621012480 is an abundant number, since it is smaller than the sum of its proper divisors (346919232960).

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

102621012480 is an frugal number, since it uses more digits than its factorization.

102621012480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 102621012480 its reverse (84210126201), we get a palindrome (186831138681).

The spelling of 102621012480 in words is "one hundred two billion, six hundred twenty-one million, twelve thousand, four hundred eighty".