157951517047 has 4 divisors (see below), whose sum is σ = 158647338936. Its totient is φ = 157255695160.

The previous prime is 157951517029. The next prime is 157951517069. The reversal of 157951517047 is 740715159751.

157951517047 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.

It is a cyclic number.

It is not a de Polignac number, because 157951517047 - 2²³ = 157943128439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157951516985 and 157951517003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157951517747) 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, 347910604 + ... + 347911057.

It is an arithmetic number, because the mean of its divisors is an integer number (39661834734).

Almost surely, 2^157951517047 is an apocalyptic number.

157951517047 is a deficient number, since it is larger than the sum of its proper divisors (695821889).

157951517047 is an equidigital number, since it uses as much as digits as its factorization.

157951517047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695821888.

The product of its (nonzero) digits is 1543500, while the sum is 52.

The spelling of 157951517047 in words is "one hundred fifty-seven billion, nine hundred fifty-one million, five hundred seventeen thousand, forty-seven".