7621765032 has 128 divisors (see below), whose sum is σ = 22976179200. Its totient is φ = 2058213888.

The previous prime is 7621765027. The next prime is 7621765037. The reversal of 7621765032 is 2305671267.

It is an interprime number because it is at equal distance from previous prime (7621765027) and next prime (7621765037).

It is a super-2 number, since 2×7621765032² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7621765037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1488108 + ... + 1493220.

It is an arithmetic number, because the mean of its divisors is an integer number (179501400).

Almost surely, 2^7621765032 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 7621765032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11488089600).

7621765032 is an abundant number, since it is smaller than the sum of its proper divisors (15354414168).

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

7621765032 is a wasteful number, since it uses less digits than its factorization.

7621765032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615 (or 5611 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 7621765032 is about 87302.7206448917. The cubic root of 7621765032 is about 1967.9702037098.

The spelling of 7621765032 in words is "seven billion, six hundred twenty-one million, seven hundred sixty-five thousand, thirty-two".