1540037791404 has 36 divisors (see below), whose sum is σ = 4448998064784. Its totient is φ = 440010797472.

The previous prime is 1540037791367. The next prime is 1540037791417. The reversal of 1540037791404 is 4041977300451.

It is a happy number.

1540037791404 is a `hidden beast` number, since 1 + 5 + 400 + 37 + 79 + 140 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1540037791404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055630287 + ... + 3055630790.

Almost surely, 2^{1540037791404} is an apocalyptic number.

1540037791404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1540037791404 is an abundant number, since it is smaller than the sum of its proper divisors (2908960273380).

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

1540037791404 is a wasteful number, since it uses less digits than its factorization.

1540037791404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111261094 (or 6111261089 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 1540037791404 in words is "one trillion, five hundred forty billion, thirty-seven million, seven hundred ninety-one thousand, four hundred four".