1540053401091 has 8 divisors (see below), whose sum is σ = 2069573074944. Its totient is φ = 1018617997320.

The previous prime is 1540053401077. The next prime is 1540053401099. The reversal of 1540053401091 is 1901043500451.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1540053401091 - 2⁹ = 1540053400579 is a prime.

It is a super-5 number, since 5×1540053401091⁵ (a number of 62 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (1540053401099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2021067075 + ... + 2021067836.

It is an arithmetic number, because the mean of its divisors is an integer number (258696634368).

Almost surely, 2^{1540053401091} is an apocalyptic number.

1540053401091 is a deficient number, since it is larger than the sum of its proper divisors (529519673853).

1540053401091 is a wasteful number, since it uses less digits than its factorization.

1540053401091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4042135041.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 1540053401091 in words is "one trillion, five hundred forty billion, fifty-three million, four hundred one thousand, ninety-one".