3425242636521 has 24 divisors (see below), whose sum is σ = 5041129523976. Its totient is φ = 2240318545920.

The previous prime is 3425242636513. The next prime is 3425242636561. The reversal of 3425242636521 is 1256362425243.

3425242636521 is a `hidden beast` number, since 3 + 4 + 2 + 5 + 2 + 4 + 2 + 636 + 5 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1782321121296 + 1642921515225 = 1335036^2 + 1281765^2 .

It is not a de Polignac number, because 3425242636521 - 2³ = 3425242636513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3425242636561) 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, 12688671 + ... + 12955803.

It is an arithmetic number, because the mean of its divisors is an integer number (210047063499).

Almost surely, 2^{3425242636521} is an apocalyptic number.

It is an amenable number.

3425242636521 is a deficient number, since it is larger than the sum of its proper divisors (1615886887455).

3425242636521 is a wasteful number, since it uses less digits than its factorization.

3425242636521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294073 (or 294070 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 3425242636521 in words is "three trillion, four hundred twenty-five billion, two hundred forty-two million, six hundred thirty-six thousand, five hundred twenty-one".