157621465429 has 4 divisors (see below), whose sum is σ = 157622282784. Its totient is φ = 157620648076.

The previous prime is 157621465411. The next prime is 157621465433. The reversal of 157621465429 is 924564126751.

157621465429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 157621465429 - 2¹³ = 157621457237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157621465409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58944 + ... + 564550.

It is an arithmetic number, because the mean of its divisors is an integer number (39405570696).

Almost surely, 2^157621465429 is an apocalyptic number.

It is an amenable number.

157621465429 is a deficient number, since it is larger than the sum of its proper divisors (817355).

157621465429 is an equidigital number, since it uses as much as digits as its factorization.

157621465429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817354.

The product of its digits is 3628800, while the sum is 52.

The spelling of 157621465429 in words is "one hundred fifty-seven billion, six hundred twenty-one million, four hundred sixty-five thousand, four hundred twenty-nine".