145247846399 has 16 divisors (see below), whose sum is σ = 150499907712. Its totient is φ = 140082881568.

The previous prime is 145247846377. The next prime is 145247846407. The reversal of 145247846399 is 993648742541.

It is a cyclic number.

It is not a de Polignac number, because 145247846399 - 2²⁴ = 145231069183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145247846599) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7031324 + ... + 7051950.

It is an arithmetic number, because the mean of its divisors is an integer number (9406244232).

Almost surely, 2^145247846399 is an apocalyptic number.

145247846399 is a deficient number, since it is larger than the sum of its proper divisors (5252061313).

145247846399 is a wasteful number, since it uses less digits than its factorization.

145247846399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22726.

The product of its digits is 52254720, while the sum is 62.

The spelling of 145247846399 in words is "one hundred forty-five billion, two hundred forty-seven million, eight hundred forty-six thousand, three hundred ninety-nine".