7640920903 has 16 divisors (see below), whose sum is σ = 9532037376. Its totient is φ = 5950405440.

The previous prime is 7640920901. The next prime is 7640920909. The reversal of 7640920903 is 3090290467.

It is not a de Polignac number, because 7640920903 - 2¹ = 7640920901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640920901) 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, 103875 + ... + 161467.

It is an arithmetic number, because the mean of its divisors is an integer number (595752336).

Almost surely, 2^7640920903 is an apocalyptic number.

7640920903 is a deficient number, since it is larger than the sum of its proper divisors (1891116473).

7640920903 is a wasteful number, since it uses less digits than its factorization.

7640920903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59334.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 7640920903 is about 87412.3612711612. The cubic root of 7640920903 is about 1969.6175318895.

The spelling of 7640920903 in words is "seven billion, six hundred forty million, nine hundred twenty thousand, nine hundred three".