1540375220404 has 12 divisors (see below), whose sum is σ = 2720387431300. Its totient is φ = 763121668608.

The previous prime is 1540375220317. The next prime is 1540375220453. The reversal of 1540375220404 is 4040225730451.

It can be written as a sum of positive squares in 2 ways, for example, as 606249104400 + 934126116004 = 778620^2 + 966502^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766484909 + ... + 1766485780.

Almost surely, 2^{1540375220404} is an apocalyptic number.

It is an amenable number.

1540375220404 is a deficient number, since it is larger than the sum of its proper divisors (1180012210896).

1540375220404 is a wasteful number, since it uses less digits than its factorization.

1540375220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532970802 (or 3532970800 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 1540375220404 in words is "one trillion, five hundred forty billion, three hundred seventy-five million, two hundred twenty thousand, four hundred four".