149278669800 has 192 divisors, whose sum is σ = 500207151360. Its totient is φ = 36609408000.

The previous prime is 149278669759. The next prime is 149278669801. The reversal of 149278669800 is 8966872941.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (149278669801) 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, 2078490 + ... + 2149110.

It is an arithmetic number, because the mean of its divisors is an integer number (2605245580).

Almost surely, 2^149278669800 is an apocalyptic number.

149278669800 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 149278669800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250103575680).

149278669800 is an abundant number, since it is smaller than the sum of its proper divisors (350928481560).

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

149278669800 is a wasteful number, since it uses less digits than its factorization.

149278669800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70924 (or 70915 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 149278669800 in words is "one hundred forty-nine billion, two hundred seventy-eight million, six hundred sixty-nine thousand, eight hundred".