74135249040 has 80 divisors (see below), whose sum is σ = 229856413248. Its totient is φ = 19766204928.

The previous prime is 74135249039. The next prime is 74135249081. The reversal of 74135249040 is 4094253147.

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

It is a self number, because there is not a number n which added to its sum of digits gives 74135249040.

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, 1715539 + ... + 1758221.

Almost surely, 2^74135249040 is an apocalyptic number.

It is an amenable number.

74135249040 is an abundant number, since it is smaller than the sum of its proper divisors (155721164208).

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

74135249040 is a wasteful number, since it uses less digits than its factorization.

74135249040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49936 (or 49930 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 74135249040 in words is "seventy-four billion, one hundred thirty-five million, two hundred forty-nine thousand, forty".