1540550216739 has 32 divisors (see below), whose sum is σ = 2104713434880. Its totient is φ = 1002008760192.

The previous prime is 1540550216729. The next prime is 1540550216749. The reversal of 1540550216739 is 9376120550451.

It is an interprime number because it is at equal distance from previous prime (1540550216729) and next prime (1540550216749).

It is not a de Polignac number, because 1540550216739 - 2²⁷ = 1540415999011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1540550216729) 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 31 ways as a sum of consecutive naturals, for example, 152027917 + ... + 152038049.

It is an arithmetic number, because the mean of its divisors is an integer number (65772294840).

Almost surely, 2^{1540550216739} is an apocalyptic number.

1540550216739 is a deficient number, since it is larger than the sum of its proper divisors (564163218141).

1540550216739 is a wasteful number, since it uses less digits than its factorization.

1540550216739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17379.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 1540550216739 in words is "one trillion, five hundred forty billion, five hundred fifty million, two hundred sixteen thousand, seven hundred thirty-nine".