154127778496 has 28 divisors (see below), whose sum is σ = 308705710248. Its totient is φ = 76343662592.

The previous prime is 154127778461. The next prime is 154127778523. The reversal of 154127778496 is 694877721451.

It is a happy number.

It is a super-2 number, since 2×154127778496² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11246641 + ... + 11260336.

Almost surely, 2^154127778496 is an apocalyptic number.

154127778496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

154127778496 is an abundant number, since it is smaller than the sum of its proper divisors (154577931752).

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

154127778496 is a wasteful number, since it uses less digits than its factorization.

154127778496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22507096 (or 22507086 counting only the distinct ones).

The product of its digits is 23708160, while the sum is 61.

The spelling of 154127778496 in words is "one hundred fifty-four billion, one hundred twenty-seven million, seven hundred seventy-eight thousand, four hundred ninety-six".