7940357544 has 64 divisors (see below), whose sum is σ = 22730365440. Its totient is φ = 2264310720.

The previous prime is 7940357539. The next prime is 7940357549. The reversal of 7940357544 is 4457530497.

It is an interprime number because it is at equal distance from previous prime (7940357539) and next prime (7940357549).

It is a junction number, because it is equal to n+sod(n) for n = 7940357493 and 7940357502.

It is not an unprimeable number, because it can be changed into a prime (7940357549) 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, 42679 + ... + 133049.

It is an arithmetic number, because the mean of its divisors is an integer number (355161960).

Almost surely, 2^7940357544 is an apocalyptic number.

It is an amenable number.

7940357544 is an abundant number, since it is smaller than the sum of its proper divisors (14790007896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7940357544 is a wasteful number, since it uses less digits than its factorization.

7940357544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90910 (or 90906 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The square root of 7940357544 is about 89108.6838865887. The cubic root of 7940357544 is about 1995.0173924527.

The spelling of 7940357544 in words is "seven billion, nine hundred forty million, three hundred fifty-seven thousand, five hundred forty-four".