145765893938 has 12 divisors (see below), whose sum is σ = 254346611022. Its totient is φ = 62471097360.

The previous prime is 145765893929. The next prime is 145765893971. The reversal of 145765893938 is 839398567541.

It can be written as a sum of positive squares in only one way, i.e., 137635806049 + 8130087889 = 370993^2 + 90167^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 743703443 + ... + 743703638.

Almost surely, 2^145765893938 is an apocalyptic number.

145765893938 is a deficient number, since it is larger than the sum of its proper divisors (108580717084).

145765893938 is a wasteful number, since it uses less digits than its factorization.

145765893938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487407097 (or 1487407090 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 68.

The spelling of 145765893938 in words is "one hundred forty-five billion, seven hundred sixty-five million, eight hundred ninety-three thousand, nine hundred thirty-eight".