154087346820 has 48 divisors (see below), whose sum is σ = 470666806848. Its totient is φ = 37354508160.

The previous prime is 154087346801. The next prime is 154087346827. The reversal of 154087346820 is 28643780451.

It is a super-2 number, since 2×154087346820² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 154087346820.

It is not an unprimeable number, because it can be changed into a prime (154087346827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116732179 + ... + 116733498.

It is an arithmetic number, because the mean of its divisors is an integer number (9805558476).

Almost surely, 2^154087346820 is an apocalyptic number.

154087346820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154087346820 is an abundant number, since it is smaller than the sum of its proper divisors (316579460028).

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

154087346820 is a wasteful number, since it uses less digits than its factorization.

154087346820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233465700 (or 233465698 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 154087346820 in words is "one hundred fifty-four billion, eighty-seven million, three hundred forty-six thousand, eight hundred twenty".