149678921300 has 144 divisors (see below), whose sum is σ = 343091374080. Its totient is φ = 56654409600.

The previous prime is 149678921281. The next prime is 149678921303. The reversal of 149678921300 is 3129876941.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149678921303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140017166 + ... + 140018234.

Almost surely, 2^149678921300 is an apocalyptic number.

149678921300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149678921300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171545687040).

149678921300 is an abundant number, since it is smaller than the sum of its proper divisors (193412452780).

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

149678921300 is a wasteful number, since it uses less digits than its factorization.

149678921300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 149678921300 in words is "one hundred forty-nine billion, six hundred seventy-eight million, nine hundred twenty-one thousand, three hundred".