2500521678720 has 384 divisors, whose sum is σ = 9302831778240. Its totient is φ = 615247183872.

The previous prime is 2500521678709. The next prime is 2500521678821. The reversal of 2500521678720 is 278761250052.

2500521678720 is a `hidden beast` number, since 2 + 50 + 0 + 521 + 6 + 7 + 8 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216921597 + ... + 216933123.

Almost surely, 2^{2500521678720} is an apocalyptic number.

2500521678720 is a gapful number since it is divisible by the number (20) 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 2500521678720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4651415889120).

2500521678720 is an abundant number, since it is smaller than the sum of its proper divisors (6802310099520).

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

2500521678720 is a wasteful number, since it uses less digits than its factorization.

2500521678720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14462 (or 14447 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 2500521678720 in words is "two trillion, five hundred billion, five hundred twenty-one million, six hundred seventy-eight thousand, seven hundred twenty".