149694469657 has 8 divisors (see below), whose sum is σ = 149791209152. Its totient is φ = 149597766000.

The previous prime is 149694469651. The next prime is 149694469733. The reversal of 149694469657 is 756964496941.

149694469657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149694469657 - 2³⁵ = 115334731289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149694469651) 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 7 ways as a sum of consecutive naturals, for example, 16461682 + ... + 16470772.

It is an arithmetic number, because the mean of its divisors is an integer number (18723901144).

Almost surely, 2^149694469657 is an apocalyptic number.

It is an amenable number.

149694469657 is a deficient number, since it is larger than the sum of its proper divisors (96739495).

149694469657 is an equidigital number, since it uses as much as digits as its factorization.

149694469657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17919.

The product of its digits is 352719360, while the sum is 70.

The spelling of 149694469657 in words is "one hundred forty-nine billion, six hundred ninety-four million, four hundred sixty-nine thousand, six hundred fifty-seven".