3261421650 has 96 divisors (see below), whose sum is σ = 8527454208. Its totient is φ = 823694400.

The previous prime is 3261421637. The next prime is 3261421663. The reversal of 3261421650 is 561241623.

It is an interprime number because it is at equal distance from previous prime (3261421637) and next prime (3261421663).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 211089 + ... + 226011.

It is an arithmetic number, because the mean of its divisors is an integer number (88827648).

Almost surely, 2^3261421650 is an apocalyptic number.

3261421650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261421650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4263727104).

3261421650 is an abundant number, since it is smaller than the sum of its proper divisors (5266032558).

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

3261421650 is a wasteful number, since it uses less digits than its factorization.

3261421650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15016 (or 15011 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 3261421650 is about 57108.8578943757. The cubic root of 3261421650 is about 1482.9812153580.

The spelling of 3261421650 in words is "three billion, two hundred sixty-one million, four hundred twenty-one thousand, six hundred fifty".