7658045720 has 96 divisors (see below), whose sum is σ = 18785682000. Its totient is φ = 2808239616.

The previous prime is 7658045719. The next prime is 7658045761. The reversal of 7658045720 is 275408567.

It is a super-3 number, since 3×7658045720³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1003439 + ... + 1011041.

Almost surely, 2^7658045720 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 7658045720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9392841000).

7658045720 is an abundant number, since it is smaller than the sum of its proper divisors (11127636280).

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

7658045720 is a wasteful number, since it uses less digits than its factorization.

7658045720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7789 (or 7772 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 44.

The square root of 7658045720 is about 87510.2606555368. The cubic root of 7658045720 is about 1971.0878683191.

The spelling of 7658045720 in words is "seven billion, six hundred fifty-eight million, forty-five thousand, seven hundred twenty".