2091463956 has 96 divisors (see below), whose sum is σ = 5577532800. Its totient is φ = 677341440.

The previous prime is 2091463937. The next prime is 2091463967. The reversal of 2091463956 is 6593641902.

2091463956 is a `hidden beast` number, since 2 + 0 + 9 + 1 + 4 + 639 + 5 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1252290 + ... + 1253958.

It is an arithmetic number, because the mean of its divisors is an integer number (58099300).

Almost surely, 2^2091463956 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 2091463956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788766400).

2091463956 is an abundant number, since it is smaller than the sum of its proper divisors (3486068844).

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

2091463956 is a wasteful number, since it uses less digits than its factorization.

2091463956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 1998 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2091463956 is about 45732.5262368044. The cubic root of 2091463956 is about 1278.8417166610.

The spelling of 2091463956 in words is "two billion, ninety-one million, four hundred sixty-three thousand, nine hundred fifty-six".