427787904198 has 16 divisors (see below), whose sum is σ = 866405882880. Its totient is φ = 140790955656.

The previous prime is 427787904101. The next prime is 427787904217. The reversal of 427787904198 is 891409787724.

It is a congruent number.

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, 451252590 + ... + 451253537.

It is an arithmetic number, because the mean of its divisors is an integer number (54150367680).

Almost surely, 2^427787904198 is an apocalyptic number.

427787904198 is an abundant number, since it is smaller than the sum of its proper divisors (438617978682).

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

427787904198 is a wasteful number, since it uses less digits than its factorization.

427787904198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902506211.

The product of its (nonzero) digits is 56899584, while the sum is 66.

The spelling of 427787904198 in words is "four hundred twenty-seven billion, seven hundred eighty-seven million, nine hundred four thousand, one hundred ninety-eight".