1540377528879 has 16 divisors (see below), whose sum is σ = 2347903816448. Its totient is φ = 879967530432.

The previous prime is 1540377528763. The next prime is 1540377528883. The reversal of 1540377528879 is 9788257730451.

It is not a de Polignac number, because 1540377528879 - 2¹³ = 1540377520687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540377528889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10265422 + ... + 10414395.

It is an arithmetic number, because the mean of its divisors is an integer number (146743988528).

Almost surely, 2^{1540377528879} is an apocalyptic number.

1540377528879 is a deficient number, since it is larger than the sum of its proper divisors (807526287569).

1540377528879 is a wasteful number, since it uses less digits than its factorization.

1540377528879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20683374.

The product of its (nonzero) digits is 118540800, while the sum is 66.

The spelling of 1540377528879 in words is "one trillion, five hundred forty billion, three hundred seventy-seven million, five hundred twenty-eight thousand, eight hundred seventy-nine".