21950277074 has 64 divisors (see below), whose sum is σ = 38605593600. Its totient is φ = 9261907200.

The previous prime is 21950277049. The next prime is 21950277109. The reversal of 21950277074 is 47077205912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3101612 + ... + 3108680.

It is an arithmetic number, because the mean of its divisors is an integer number (603212400).

Almost surely, 2^21950277074 is an apocalyptic number.

21950277074 is a deficient number, since it is larger than the sum of its proper divisors (16655316526).

21950277074 is a wasteful number, since it uses less digits than its factorization.

21950277074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299.

The product of its (nonzero) digits is 246960, while the sum is 44.

The spelling of 21950277074 in words is "twenty-one billion, nine hundred fifty million, two hundred seventy-seven thousand, seventy-four".