145267251688 has 32 divisors (see below), whose sum is σ = 293344904160. Its totient is φ = 67042584000.

The previous prime is 145267251671. The next prime is 145267251797. The reversal of 145267251688 is 886152762541.

It is a super-2 number, since 2×145267251688² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650563 + ... + 2704813.

It is an arithmetic number, because the mean of its divisors is an integer number (9167028255).

Almost surely, 2^145267251688 is an apocalyptic number.

It is an amenable number.

145267251688 is an abundant number, since it is smaller than the sum of its proper divisors (148077652472).

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

145267251688 is a wasteful number, since it uses less digits than its factorization.

145267251688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80017 (or 80013 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 55.

The spelling of 145267251688 in words is "one hundred forty-five billion, two hundred sixty-seven million, two hundred fifty-one thousand, six hundred eighty-eight".