194620079136 has 384 divisors, whose sum is σ = 607535824896. Its totient is φ = 53404323840.

The previous prime is 194620079047. The next prime is 194620079183. The reversal of 194620079136 is 631970026491.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 664232206 + ... + 664232498.

It is an arithmetic number, because the mean of its divisors is an integer number (1582124544).

Almost surely, 2^194620079136 is an apocalyptic number.

194620079136 is a gapful number since it is divisible by the number (16) 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 194620079136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303767912448).

194620079136 is an abundant number, since it is smaller than the sum of its proper divisors (412915745760).

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

194620079136 is a wasteful number, since it uses less digits than its factorization.

194620079136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 194620079136 in words is "one hundred ninety-four billion, six hundred twenty million, seventy-nine thousand, one hundred thirty-six".