7940499953 has 2 divisors, whose sum is σ = 7940499954. Its totient is φ = 7940499952.

The previous prime is 7940499937. The next prime is 7940499977. The reversal of 7940499953 is 3599940497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7826587024 + 113912929 = 88468^2 + 10673^2 .

It is a cyclic number.

It is not a de Polignac number, because 7940499953 - 2⁴ = 7940499937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7940499892 and 7940499901.

It is not a weakly prime, because it can be changed into another prime (7940499923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970249976 + 3970249977.

It is an arithmetic number, because the mean of its divisors is an integer number (3970249977).

Almost surely, 2^7940499953 is an apocalyptic number.

It is an amenable number.

7940499953 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940499953 is an equidigital number, since it uses as much as digits as its factorization.

7940499953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The square root of 7940499953 is about 89109.4829577638. The cubic root of 7940499953 is about 1995.0293191504.

The spelling of 7940499953 in words is "seven billion, nine hundred forty million, four hundred ninety-nine thousand, nine hundred fifty-three".