7190790640 has 80 divisors (see below), whose sum is σ = 18350718336. Its totient is φ = 2598739200.

The previous prime is 7190790601. The next prime is 7190790661. The reversal of 7190790640 is 460970917.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118375 + ... + 168505.

Almost surely, 2^7190790640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7190790640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9175359168).

7190790640 is an abundant number, since it is smaller than the sum of its proper divisors (11159927696).

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

7190790640 is a wasteful number, since it uses less digits than its factorization.

7190790640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50318 (or 50312 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 7190790640 is about 84798.5297042348. The cubic root of 7190790640 is about 1930.1551272663.

The spelling of 7190790640 in words is "seven billion, one hundred ninety million, seven hundred ninety thousand, six hundred forty".