7906139136 has 616 divisors, whose sum is σ = 28996328160. Its totient is φ = 2102132736.

The previous prime is 7906139113. The next prime is 7906139141. The reversal of 7906139136 is 6319316097.

It is a junction number, because it is equal to n+sod(n) for n = 7906139091 and 7906139100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 88832980 + ... + 88833068.

Almost surely, 2^7906139136 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 7906139136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14498164080).

7906139136 is an abundant number, since it is smaller than the sum of its proper divisors (21090189024).

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

7906139136 is an equidigital number, since it uses as much as digits as its factorization.

7906139136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 7906139136 is about 88916.4728045372. The cubic root of 7906139136 is about 1992.1474705745.

The spelling of 7906139136 in words is "seven billion, nine hundred six million, one hundred thirty-nine thousand, one hundred thirty-six".