134798393640 has 64 divisors (see below), whose sum is σ = 404691500160. Its totient is φ = 35919898880.

The previous prime is 134798393603. The next prime is 134798393687. The reversal of 134798393640 is 46393897431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246831 + ... + 574910.

It is an arithmetic number, because the mean of its divisors is an integer number (6323304690).

Almost surely, 2^134798393640 is an apocalyptic number.

134798393640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134798393640 is an abundant number, since it is smaller than the sum of its proper divisors (269893106520).

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

134798393640 is a wasteful number, since it uses less digits than its factorization.

134798393640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823122 (or 823118 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 134798393640 in words is "one hundred thirty-four billion, seven hundred ninety-eight million, three hundred ninety-three thousand, six hundred forty".