151936810781 has 8 divisors (see below), whose sum is σ = 173681812224. Its totient is φ = 130201745040.

The previous prime is 151936810777. The next prime is 151936810789. The reversal of 151936810781 is 187018639151.

151936810781 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 cyclic number.

It is not a de Polignac number, because 151936810781 - 2² = 151936810777 is a prime.

It is a super-2 number, since 2×151936810781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151936810789) 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 7 ways as a sum of consecutive naturals, for example, 2451125 + ... + 2512346.

It is an arithmetic number, because the mean of its divisors is an integer number (21710226528).

Almost surely, 2^151936810781 is an apocalyptic number.

It is an amenable number.

151936810781 is a deficient number, since it is larger than the sum of its proper divisors (21745001443).

151936810781 is an equidigital number, since it uses as much as digits as its factorization.

151936810781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967851.

The product of its (nonzero) digits is 362880, while the sum is 50.

The spelling of 151936810781 in words is "one hundred fifty-one billion, nine hundred thirty-six million, eight hundred ten thousand, seven hundred eighty-one".