2520151691922 has 18 divisors (see below), whose sum is σ = 5460343258773. Its totient is φ = 840048318912.

The previous prime is 2520151691921. The next prime is 2520151691923. The reversal of 2520151691922 is 2291961510252.

2520151691922 is a `hidden beast` number, since 2 + 5 + 20 + 1 + 516 + 91 + 9 + 22 = 666.

It is an interprime number because it is at equal distance from previous prime (2520151691921) and next prime (2520151691923).

It can be written as a sum of positive squares in 2 ways, for example, as 2178372316761 + 341779375161 = 1475931^2 + 584619^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1122531.

It is not an unprimeable number, because it can be changed into a prime (2520151691921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6548098 + ... + 6922274.

Almost surely, 2^{2520151691922} is an apocalyptic number.

2520151691922 is an abundant number, since it is smaller than the sum of its proper divisors (2940191566851).

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

2520151691922 is an frugal number, since it uses more digits than its factorization.

2520151691922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748362 (or 374182 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 2520151691922 in words is "two trillion, five hundred twenty billion, one hundred fifty-one million, six hundred ninety-one thousand, nine hundred twenty-two".