40025139015 has 16 divisors (see below), whose sum is σ = 64305955296. Its totient is φ = 21258163200.

The previous prime is 40025139013. The next prime is 40025139019. The reversal of 40025139015 is 51093152004.

It is not a de Polignac number, because 40025139015 - 2¹ = 40025139013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40025139013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5532366 + ... + 5539595.

It is an arithmetic number, because the mean of its divisors is an integer number (4019122206).

Almost surely, 2^40025139015 is an apocalyptic number.

40025139015 is a deficient number, since it is larger than the sum of its proper divisors (24280816281).

40025139015 is a wasteful number, since it uses less digits than its factorization.

40025139015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072210.

The product of its (nonzero) digits is 5400, while the sum is 30.

It can be divided in two parts, 4002513 and 9015, that added together give a triangular number (4011528 = T₂₈₃₂).

The spelling of 40025139015 in words is "forty billion, twenty-five million, one hundred thirty-nine thousand, fifteen".