7561902401 has 4 divisors (see below), whose sum is σ = 7593542400. Its totient is φ = 7530262404.

The previous prime is 7561902377. The next prime is 7561902407. The reversal of 7561902401 is 1042091657.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7561902401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7561902407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15819641 + ... + 15820118.

It is an arithmetic number, because the mean of its divisors is an integer number (1898385600).

Almost surely, 2^7561902401 is an apocalyptic number.

It is an amenable number.

7561902401 is a deficient number, since it is larger than the sum of its proper divisors (31639999).

7561902401 is a wasteful number, since it uses less digits than its factorization.

7561902401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31639998.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 7561902401 is about 86959.1996340813. The cubic root of 7561902401 is about 1962.8043987565.

The spelling of 7561902401 in words is "seven billion, five hundred sixty-one million, nine hundred two thousand, four hundred one".