147291149780 has 18 divisors (see below), whose sum is σ = 309315018894. Its totient is φ = 58915773376.

The previous prime is 147291149773. The next prime is 147291149783. The reversal of 147291149780 is 87941192741.

It can be written as a sum of positive squares in 3 ways, for example, as 12277526416 + 135013623364 = 110804^2 + 367442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147291149783) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1673432 + ... + 1759248.

Almost surely, 2^147291149780 is an apocalyptic number.

147291149780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147291149780 is an abundant number, since it is smaller than the sum of its proper divisors (162023869114).

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

147291149780 is an frugal number, since it uses more digits than its factorization.

147291149780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171643 (or 85824 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 53.

The spelling of 147291149780 in words is "one hundred forty-seven billion, two hundred ninety-one million, one hundred forty-nine thousand, seven hundred eighty".