198734601492 has 384 divisors, whose sum is σ = 660454502400. Its totient is φ = 50307858432.

The previous prime is 198734601469. The next prime is 198734601503. The reversal of 198734601492 is 294106437891.

198734601492 is a `hidden beast` number, since 1 + 9 + 87 + 3 + 460 + 14 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39800148 + ... + 39805140.

It is an arithmetic number, because the mean of its divisors is an integer number (1719933600).

Almost surely, 2^198734601492 is an apocalyptic number.

198734601492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198734601492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330227251200).

198734601492 is an abundant number, since it is smaller than the sum of its proper divisors (461719900908).

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

198734601492 is a wasteful number, since it uses less digits than its factorization.

198734601492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 198734601492 in words is "one hundred ninety-eight billion, seven hundred thirty-four million, six hundred one thousand, four hundred ninety-two".