2521235042768 has 20 divisors (see below), whose sum is σ = 5260653887748. Its totient is φ = 1163646942720.

The previous prime is 2521235042749. The next prime is 2521235042831. The reversal of 2521235042768 is 8672405321252.

It can be written as a sum of positive squares in 2 ways, for example, as 728346178624 + 1792888864144 = 853432^2 + 1338988^2 .

It is a super-2 number, since 2×2521235042768² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6060660953 + ... + 6060661368.

Almost surely, 2^{2521235042768} is an apocalyptic number.

It is an amenable number.

2521235042768 is an abundant number, since it is smaller than the sum of its proper divisors (2739418844980).

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

2521235042768 is a wasteful number, since it uses less digits than its factorization.

2521235042768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121322342 (or 12121322336 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 2521235042768 in words is "two trillion, five hundred twenty-one billion, two hundred thirty-five million, forty-two thousand, seven hundred sixty-eight".