7836991650 has 192 divisors, whose sum is σ = 22046624640. Its totient is φ = 2046643200.

The previous prime is 7836991649. The next prime is 7836991661. The reversal of 7836991650 is 561996387.

It is a super-2 number, since 2×7836991650² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27692409 + ... + 27692691.

It is an arithmetic number, because the mean of its divisors is an integer number (114826170).

Almost surely, 2^7836991650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7836991650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11023312320).

7836991650 is an abundant number, since it is smaller than the sum of its proper divisors (14209632990).

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

7836991650 is a wasteful number, since it uses less digits than its factorization.

7836991650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 7836991650 is about 88526.7849297601. The cubic root of 7836991650 is about 1986.3226490878.

The spelling of 7836991650 in words is "seven billion, eight hundred thirty-six million, nine hundred ninety-one thousand, six hundred fifty".