145394429798 has 4 divisors (see below), whose sum is σ = 218091644700. Its totient is φ = 72697214898.

The previous prime is 145394429779. The next prime is 145394429813. The reversal of 145394429798 is 897924493541.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×145394429798² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36348607448 + ... + 36348607451.

It is an arithmetic number, because the mean of its divisors is an integer number (54522911175).

Almost surely, 2^145394429798 is an apocalyptic number.

145394429798 is a deficient number, since it is larger than the sum of its proper divisors (72697214902).

145394429798 is an equidigital number, since it uses as much as digits as its factorization.

145394429798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72697214901.

The product of its digits is 78382080, while the sum is 65.

The spelling of 145394429798 in words is "one hundred forty-five billion, three hundred ninety-four million, four hundred twenty-nine thousand, seven hundred ninety-eight".