149869636899 has 32 divisors (see below), whose sum is σ = 210089662464. Its totient is φ = 94911264000.

The previous prime is 149869636871. The next prime is 149869636901. The reversal of 149869636899 is 998636968941.

149869636899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 387130²-1.

It is not a de Polignac number, because 149869636899 - 2²³ = 149861248291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149869636849) 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 31 ways as a sum of consecutive naturals, for example, 14318542 + ... + 14329004.

It is an arithmetic number, because the mean of its divisors is an integer number (6565301952).

Almost surely, 2^149869636899 is an apocalyptic number.

149869636899 is a deficient number, since it is larger than the sum of its proper divisors (60220025565).

149869636899 is a wasteful number, since it uses less digits than its factorization.

149869636899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13547.

The product of its digits is 1088391168, while the sum is 78.

The spelling of 149869636899 in words is "one hundred forty-nine billion, eight hundred sixty-nine million, six hundred thirty-six thousand, eight hundred ninety-nine".