1540002693745 has 16 divisors (see below), whose sum is σ = 1947270041280. Its totient is φ = 1165957848000.

The previous prime is 1540002693743. The next prime is 1540002693787. The reversal of 1540002693745 is 5473962000451.

It is a happy number.

It is not a de Polignac number, because 1540002693745 - 2¹ = 1540002693743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1540002693695 and 1540002693704.

It is not an unprimeable number, because it can be changed into a prime (1540002693743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8255106 + ... + 8439595.

It is an arithmetic number, because the mean of its divisors is an integer number (121704377580).

Almost surely, 2^{1540002693745} is an apocalyptic number.

It is an amenable number.

1540002693745 is a deficient number, since it is larger than the sum of its proper divisors (407267347535).

1540002693745 is a wasteful number, since it uses less digits than its factorization.

1540002693745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16695696.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 1540002693745 in words is "one trillion, five hundred forty billion, two million, six hundred ninety-three thousand, seven hundred forty-five".