157489400806 has 8 divisors (see below), whose sum is σ = 236463235344. Its totient is φ = 78668322360.

The previous prime is 157489400791. The next prime is 157489400807. The reversal of 157489400806 is 608004984751.

157489400806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×157489400806² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157489400807) 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, 38186445 + ... + 38190568.

It is an arithmetic number, because the mean of its divisors is an integer number (29557904418).

Almost surely, 2^157489400806 is an apocalyptic number.

157489400806 is a deficient number, since it is larger than the sum of its proper divisors (78973834538).

157489400806 is a wasteful number, since it uses less digits than its factorization.

157489400806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76378046.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 157489400806 in words is "one hundred fifty-seven billion, four hundred eighty-nine million, four hundred thousand, eight hundred six".