18767969950 has 24 divisors (see below), whose sum is σ = 34912968552. Its totient is φ = 7506210720.

The previous prime is 18767969911. The next prime is 18767969953. The reversal of 18767969950 is 5996976781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18767969953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457692 + ... + 497008.

It is an arithmetic number, because the mean of its divisors is an integer number (1454707023).

Almost surely, 2^18767969950 is an apocalyptic number.

18767969950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18767969950 is a deficient number, since it is larger than the sum of its proper divisors (16144998602).

18767969950 is a wasteful number, since it uses less digits than its factorization.

18767969950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48876 (or 48871 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 67.

The spelling of 18767969950 in words is "eighteen billion, seven hundred sixty-seven million, nine hundred sixty-nine thousand, nine hundred fifty".