145427538684 has 12 divisors (see below), whose sum is σ = 339330923624. Its totient is φ = 48475846224.

The previous prime is 145427538647. The next prime is 145427538689. The reversal of 145427538684 is 486835724541.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×145427538684² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145427538689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6059480767 + ... + 6059480790.

Almost surely, 2^145427538684 is an apocalyptic number.

It is an amenable number.

145427538684 is an abundant number, since it is smaller than the sum of its proper divisors (193903384940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145427538684 is a wasteful number, since it uses less digits than its factorization.

145427538684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12118961564 (or 12118961562 counting only the distinct ones).

The product of its digits is 25804800, while the sum is 57.

The spelling of 145427538684 in words is "one hundred forty-five billion, four hundred twenty-seven million, five hundred thirty-eight thousand, six hundred eighty-four".