157654621854730 has 512 divisors, whose sum is σ = 387461171865600. Its totient is φ = 44971918295040.

The previous prime is 157654621854721. The next prime is 157654621854749. The reversal of 157654621854730 is 37458126456751.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 74611746154 + ... + 74611748266.

It is an arithmetic number, because the mean of its divisors is an integer number (756760101300).

Almost surely, 2^{157654621854730} is an apocalyptic number.

157654621854730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157654621854730 is an abundant number, since it is smaller than the sum of its proper divisors (229806550010870).

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

157654621854730 is a wasteful number, since it uses less digits than its factorization.

157654621854730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671 (or 2649 counting only the distinct ones).

The product of its (nonzero) digits is 169344000, while the sum is 64.

The spelling of 157654621854730 in words is "one hundred fifty-seven trillion, six hundred fifty-four billion, six hundred twenty-one million, eight hundred fifty-four thousand, seven hundred thirty".