919974950 has 12 divisors (see below), whose sum is σ = 1711153500. Its totient is φ = 367989960.

The previous prime is 919974949. The next prime is 919974961. The reversal of 919974950 is 59479919.

It is a junction number, because it is equal to n+sod(n) for n = 919974892 and 919974901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9199700 + ... + 9199799.

It is an arithmetic number, because the mean of its divisors is an integer number (142596125).

Almost surely, 2^919974950 is an apocalyptic number.

919974950 is a deficient number, since it is larger than the sum of its proper divisors (791178550).

919974950 is a wasteful number, since it uses less digits than its factorization.

919974950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18399511 (or 18399506 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 53.

The square root of 919974950 is about 30331.0888363738. The cubic root of 919974950 is about 972.5799988380.

The spelling of 919974950 in words is "nine hundred nineteen million, nine hundred seventy-four thousand, nine hundred fifty".