7621836032 has 72 divisors (see below), whose sum is σ = 16140760776. Its totient is φ = 3579641856.

The previous prime is 7621836017. The next prime is 7621836041. The reversal of 7621836032 is 2306381267.

It can be written as a sum of positive squares in 4 ways, for example, as 522762496 + 7099073536 = 22864^2 + 84256^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2666348 + ... + 2669204.

It is an arithmetic number, because the mean of its divisors is an integer number (224177233).

Almost surely, 2^7621836032 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 7621836032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8070380388).

7621836032 is an abundant number, since it is smaller than the sum of its proper divisors (8518924744).

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

7621836032 is a wasteful number, since it uses less digits than its factorization.

7621836032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503 (or 3489 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 7621836032 is about 87303.1272750295. The cubic root of 7621836032 is about 1967.9763145187.

The spelling of 7621836032 in words is "seven billion, six hundred twenty-one million, eight hundred thirty-six thousand, thirty-two".