34156250640 has 160 divisors (see below), whose sum is σ = 117860313600. Its totient is φ = 9091998720.

The previous prime is 34156250563. The next prime is 34156250659. The reversal of 34156250640 is 4605265143.

34156250640 is a `hidden beast` number, since 3 + 4 + 1 + 5 + 6 + 2 + 5 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 34156250595 and 34156250604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1215145 + ... + 1242935.

It is an arithmetic number, because the mean of its divisors is an integer number (736626960).

Almost surely, 2^34156250640 is an apocalyptic number.

34156250640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34156250640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58930156800).

34156250640 is an abundant number, since it is smaller than the sum of its proper divisors (83704062960).

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

34156250640 is a wasteful number, since it uses less digits than its factorization.

34156250640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28382 (or 28370 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 34156250640 in words is "thirty-four billion, one hundred fifty-six million, two hundred fifty thousand, six hundred forty".