157409771215394 has 8 divisors (see below), whose sum is σ = 236114715810000. Its totient is φ = 78704865945396.

The previous prime is 157409771215343. The next prime is 157409771215439. The reversal of 157409771215394 is 493512177904751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157409771215394.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4155857 + ... + 18223355.

It is an arithmetic number, because the mean of its divisors is an integer number (29514339476250).

Almost surely, 2^{157409771215394} is an apocalyptic number.

157409771215394 is a deficient number, since it is larger than the sum of its proper divisors (78704944594606).

157409771215394 is a wasteful number, since it uses less digits than its factorization.

157409771215394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19662304.

The product of its (nonzero) digits is 66679200, while the sum is 65.

The spelling of 157409771215394 in words is "one hundred fifty-seven trillion, four hundred nine billion, seven hundred seventy-one million, two hundred fifteen thousand, three hundred ninety-four".