7499073644 has 24 divisors (see below), whose sum is σ = 13218780960. Its totient is φ = 3722378624.

The previous prime is 7499073641. The next prime is 7499073649. The reversal of 7499073644 is 4463709947.

It is a super-2 number, since 2×7499073644² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7499073641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296072 + ... + 320400.

It is an arithmetic number, because the mean of its divisors is an integer number (550782540).

Almost surely, 2^7499073644 is an apocalyptic number.

It is an amenable number.

7499073644 is a deficient number, since it is larger than the sum of its proper divisors (5719707316).

7499073644 is a wasteful number, since it uses less digits than its factorization.

7499073644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24889 (or 24887 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 53.

The square root of 7499073644 is about 86597.1918944258. The cubic root of 7499073644 is about 1957.3532270189.

The spelling of 7499073644 in words is "seven billion, four hundred ninety-nine million, seventy-three thousand, six hundred forty-four".