7860061650 has 96 divisors (see below), whose sum is σ = 22698154368. Its totient is φ = 1762675200.

The previous prime is 7860061637. The next prime is 7860061691. The reversal of 7860061650 is 561600687.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7860061599 and 7860061608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14971 + ... + 126270.

It is an arithmetic number, because the mean of its divisors is an integer number (236439108).

Almost surely, 2^7860061650 is an apocalyptic number.

7860061650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7860061650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11349077184).

7860061650 is an abundant number, since it is smaller than the sum of its proper divisors (14838092718).

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

7860061650 is a wasteful number, since it uses less digits than its factorization.

7860061650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141316 (or 141311 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 7860061650 is about 88656.9887262138. The cubic root of 7860061650 is about 1988.2698066187.

The spelling of 7860061650 in words is "seven billion, eight hundred sixty million, sixty-one thousand, six hundred fifty".