151694074489 has 4 divisors (see below), whose sum is σ = 158289469056. Its totient is φ = 145098679924.

The previous prime is 151694074481. The next prime is 151694074507. The reversal of 151694074489 is 984470496151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151694074489 - 2³ = 151694074481 is a prime.

It is a super-2 number, since 2×151694074489² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151694074481) 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, 3297697249 + ... + 3297697294.

It is an arithmetic number, because the mean of its divisors is an integer number (39572367264).

Almost surely, 2^151694074489 is an apocalyptic number.

It is an amenable number.

151694074489 is a deficient number, since it is larger than the sum of its proper divisors (6595394567).

151694074489 is an equidigital number, since it uses as much as digits as its factorization.

151694074489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595394566.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 151694074489 in words is "one hundred fifty-one billion, six hundred ninety-four million, seventy-four thousand, four hundred eighty-nine".