155347028419 has 24 divisors (see below), whose sum is σ = 172876496240. Its totient is φ = 139479183360.

The previous prime is 155347028401. The next prime is 155347028453. The reversal of 155347028419 is 914820743551.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-155347028419 is a prime.

It is a super-2 number, since 2×155347028419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155347028479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3222139 + ... + 3269995.

Almost surely, 2^155347028419 is an apocalyptic number.

155347028419 is a deficient number, since it is larger than the sum of its proper divisors (17529467821).

155347028419 is a wasteful number, since it uses less digits than its factorization.

155347028419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48211 (or 48200 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 155347028419 in words is "one hundred fifty-five billion, three hundred forty-seven million, twenty-eight thousand, four hundred nineteen".