22912291948 has 72 divisors (see below), whose sum is σ = 50249633280. Its totient is φ = 8949320640.

The previous prime is 22912291939. The next prime is 22912291981. The reversal of 22912291948 is 84919221922.

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 23 ways as a sum of consecutive naturals, for example, 343183 + ... + 404473.

Almost surely, 2^22912291948 is an apocalyptic number.

22912291948 is a gapful number since it is divisible by the number (28) 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 22912291948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25124816640).

22912291948 is an abundant number, since it is smaller than the sum of its proper divisors (27337341332).

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

22912291948 is a wasteful number, since it uses less digits than its factorization.

22912291948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61407 (or 61392 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The spelling of 22912291948 in words is "twenty-two billion, nine hundred twelve million, two hundred ninety-one thousand, nine hundred forty-eight".