7520412140257 has 16 divisors (see below), whose sum is σ = 8074181260800. Its totient is φ = 6979255395840.

The previous prime is 7520412140249. The next prime is 7520412140261.

7520412140257 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 7520412140257 - 2³ = 7520412140249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7520412140207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2657157 + ... + 4701202.

It is an arithmetic number, because the mean of its divisors is an integer number (504636328800).

Almost surely, 2^{7520412140257} is an apocalyptic number.

It is an amenable number.

7520412140257 is a deficient number, since it is larger than the sum of its proper divisors (553769120543).

7520412140257 is a wasteful number, since it uses less digits than its factorization.

7520412140257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7359216.

The product of its (nonzero) digits is 156800, while the sum is 40.

The spelling of 7520412140257 in words is "seven trillion, five hundred twenty billion, four hundred twelve million, one hundred forty thousand, two hundred fifty-seven".