129799890151 has 4 divisors (see below), whose sum is σ = 131577970912. Its totient is φ = 128021809392.

The previous prime is 129799890119. The next prime is 129799890167. The reversal of 129799890151 is 151098997921.

It is a happy number.

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 129799890151 - 2⁵ = 129799890119 is a prime.

It is a super-2 number, since 2×129799890151² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129799890151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129799890251) 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, 889040271 + ... + 889040416.

It is an arithmetic number, because the mean of its divisors is an integer number (32894492728).

Almost surely, 2^129799890151 is an apocalyptic number.

129799890151 is a deficient number, since it is larger than the sum of its proper divisors (1778080761).

129799890151 is an equidigital number, since it uses as much as digits as its factorization.

129799890151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778080760.

The product of its (nonzero) digits is 3674160, while the sum is 61.

The spelling of 129799890151 in words is "one hundred twenty-nine billion, seven hundred ninety-nine million, eight hundred ninety thousand, one hundred fifty-one".