154838077922140 has 24 divisors (see below), whose sum is σ = 325160344881792. Its totient is φ = 61935158550720.

The previous prime is 154838077922137. The next prime is 154838077922141. The reversal of 154838077922140 is 41229770838451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154838077922141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14996370 + ... + 23120710.

It is an arithmetic number, because the mean of its divisors is an integer number (13548347703408).

Almost surely, 2^{154838077922140} is an apocalyptic number.

154838077922140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154838077922140 is an abundant number, since it is smaller than the sum of its proper divisors (170322266959652).

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

154838077922140 is a wasteful number, since it uses less digits than its factorization.

154838077922140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077277 (or 9077275 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 61.

The spelling of 154838077922140 in words is "one hundred fifty-four trillion, eight hundred thirty-eight billion, seventy-seven million, nine hundred twenty-two thousand, one hundred forty".