149799687730 has 32 divisors (see below), whose sum is σ = 336173846400. Its totient is φ = 46690811520.

The previous prime is 149799687701. The next prime is 149799687787. The reversal of 149799687730 is 37786997941.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a self number, because there is not a number n which added to its sum of digits gives 149799687730.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97271755 + ... + 97273294.

It is an arithmetic number, because the mean of its divisors is an integer number (10505432700).

Almost surely, 2^149799687730 is an apocalyptic number.

149799687730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149799687730 is an abundant number, since it is smaller than the sum of its proper divisors (186374158670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149799687730 is a wasteful number, since it uses less digits than its factorization.

149799687730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194545074.

The product of its (nonzero) digits is 144027072, while the sum is 70.

The spelling of 149799687730 in words is "one hundred forty-nine billion, seven hundred ninety-nine million, six hundred eighty-seven thousand, seven hundred thirty".