7940885949 has 12 divisors (see below), whose sum is σ = 11894990016. Its totient is φ = 5293923804.

The previous prime is 7940885917. The next prime is 7940885971. The reversal of 7940885949 is 9495880497.

It is not a de Polignac number, because 7940885949 - 2⁵ = 7940885917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7940885989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16339029 + ... + 16339514.

It is an arithmetic number, because the mean of its divisors is an integer number (991249168).

Almost surely, 2^7940885949 is an apocalyptic number.

It is an amenable number.

7940885949 is a deficient number, since it is larger than the sum of its proper divisors (3954104067).

7940885949 is an equidigital number, since it uses as much as digits as its factorization.

7940885949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32678558 (or 32678546 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 7940885949 is about 89111.6487839833. The cubic root of 7940885949 is about 1995.0616454466.

The spelling of 7940885949 in words is "seven billion, nine hundred forty million, eight hundred eighty-five thousand, nine hundred forty-nine".