7420253961 has 16 divisors (see below), whose sum is σ = 10313952768. Its totient is φ = 4739856000.

The previous prime is 7420253957. The next prime is 7420253963. The reversal of 7420253961 is 1693520247.

It is not a de Polignac number, because 7420253961 - 2² = 7420253957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7420253963) 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, 385596 + ... + 404381.

It is an arithmetic number, because the mean of its divisors is an integer number (644622048).

Almost surely, 2^7420253961 is an apocalyptic number.

It is an amenable number.

7420253961 is a deficient number, since it is larger than the sum of its proper divisors (2893698807).

7420253961 is a wasteful number, since it uses less digits than its factorization.

7420253961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790112.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 7420253961 is about 86140.8959844277. The cubic root of 7420253961 is about 1950.4714144940.

The spelling of 7420253961 in words is "seven billion, four hundred twenty million, two hundred fifty-three thousand, nine hundred sixty-one".