149977671549 has 8 divisors (see below), whose sum is σ = 204847551552. Its totient is φ = 97546452960.

The previous prime is 149977671517. The next prime is 149977671551. The reversal of 149977671549 is 945176779941.

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

It is not a de Polignac number, because 149977671549 - 2⁵ = 149977671517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149977671589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609665209 + ... + 609665454.

It is an arithmetic number, because the mean of its divisors is an integer number (25605943944).

Almost surely, 2^149977671549 is an apocalyptic number.

It is an amenable number.

149977671549 is a deficient number, since it is larger than the sum of its proper divisors (54869880003).

149977671549 is a wasteful number, since it uses less digits than its factorization.

149977671549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219330707.

The product of its digits is 120022560, while the sum is 69.

The spelling of 149977671549 in words is "one hundred forty-nine billion, nine hundred seventy-seven million, six hundred seventy-one thousand, five hundred forty-nine".