23219777898 has 16 divisors (see below), whose sum is σ = 51599506560. Its totient is φ = 7739925948.

The previous prime is 23219777851. The next prime is 23219777929. The reversal of 23219777898 is 89877791232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214997890 + ... + 214997997.

It is an arithmetic number, because the mean of its divisors is an integer number (3224969160).

Almost surely, 2^23219777898 is an apocalyptic number.

23219777898 is an abundant number, since it is smaller than the sum of its proper divisors (28379728662).

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

23219777898 is a wasteful number, since it uses less digits than its factorization.

23219777898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429995898 (or 429995892 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 63.

The spelling of 23219777898 in words is "twenty-three billion, two hundred nineteen million, seven hundred seventy-seven thousand, eight hundred ninety-eight".