157874950778 has 8 divisors (see below), whose sum is σ = 237583803072. Its totient is φ = 78680349756.

The previous prime is 157874950777. The next prime is 157874950781. The reversal of 157874950778 is 877059478751.

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

It is not an unprimeable number, because it can be changed into a prime (157874950771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128562050 + ... + 128563277.

It is an arithmetic number, because the mean of its divisors is an integer number (29697975384).

Almost surely, 2^157874950778 is an apocalyptic number.

157874950778 is a deficient number, since it is larger than the sum of its proper divisors (79708852294).

157874950778 is a wasteful number, since it uses less digits than its factorization.

157874950778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257125636.

The product of its (nonzero) digits is 138297600, while the sum is 68.

The spelling of 157874950778 in words is "one hundred fifty-seven billion, eight hundred seventy-four million, nine hundred fifty thousand, seven hundred seventy-eight".