139881417087 has 32 divisors (see below), whose sum is σ = 195524296704. Its totient is φ = 88851016800.

The previous prime is 139881417037. The next prime is 139881417097. The reversal of 139881417087 is 780714188931.

It is not a de Polignac number, because 139881417087 - 2¹² = 139881412991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139881417037) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1502038 + ... + 1592444.

It is an arithmetic number, because the mean of its divisors is an integer number (6110134272).

Almost surely, 2^139881417087 is an apocalyptic number.

139881417087 is a deficient number, since it is larger than the sum of its proper divisors (55642879617).

139881417087 is a wasteful number, since it uses less digits than its factorization.

139881417087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90699.

The product of its (nonzero) digits is 2709504, while the sum is 57.

The spelling of 139881417087 in words is "one hundred thirty-nine billion, eight hundred eighty-one million, four hundred seventeen thousand, eighty-seven".