145747512776 has 16 divisors (see below), whose sum is σ = 273682653900. Its totient is φ = 72765471744.

The previous prime is 145747512773. The next prime is 145747512821. The reversal of 145747512776 is 677215747541.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 141281263876 + 4466248900 = 375874^2 + 66830^2 .

It is not an unprimeable number, because it can be changed into a prime (145747512773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13529861 + ... + 13540628.

Almost surely, 2^145747512776 is an apocalyptic number.

It is an amenable number.

145747512776 is a deficient number, since it is larger than the sum of its proper divisors (127935141124).

145747512776 is a wasteful number, since it uses less digits than its factorization.

145747512776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27071168 (or 27071164 counting only the distinct ones).

The product of its digits is 11524800, while the sum is 56.

The spelling of 145747512776 in words is "one hundred forty-five billion, seven hundred forty-seven million, five hundred twelve thousand, seven hundred seventy-six".