149028011817 has 8 divisors (see below), whose sum is σ = 198706575840. Its totient is φ = 99350727840.

The previous prime is 149028011807. The next prime is 149028011843. The reversal of 149028011817 is 718110820941.

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

It is not a de Polignac number, because 149028011817 - 2²² = 149023817513 is a prime.

It is a super-2 number, since 2×149028011817² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149028011807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3684 + ... + 545957.

It is an arithmetic number, because the mean of its divisors is an integer number (24838321980).

Almost surely, 2^149028011817 is an apocalyptic number.

It is an amenable number.

149028011817 is a deficient number, since it is larger than the sum of its proper divisors (49678564023).

149028011817 is an equidigital number, since it uses as much as digits as its factorization.

149028011817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640023.

The product of its (nonzero) digits is 32256, while the sum is 42.

The spelling of 149028011817 in words is "one hundred forty-nine billion, twenty-eight million, eleven thousand, eight hundred seventeen".