134673734640 has 80 divisors (see below), whose sum is σ = 423207654048. Its totient is φ = 35421032448.

The previous prime is 134673734621. The next prime is 134673734669. The reversal of 134673734640 is 46437376431.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a self number, because there is not a number n which added to its sum of digits gives 134673734640.

It is a congruent number.

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, 3825909 + ... + 3860948.

Almost surely, 2^134673734640 is an apocalyptic number.

134673734640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134673734640 is an abundant number, since it is smaller than the sum of its proper divisors (288533919408).

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

134673734640 is a wasteful number, since it uses less digits than its factorization.

134673734640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686946 (or 7686940 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 48.

The spelling of 134673734640 in words is "one hundred thirty-four billion, six hundred seventy-three million, seven hundred thirty-four thousand, six hundred forty".