145093906978 has 16 divisors (see below), whose sum is σ = 220279510584. Its totient is φ = 71670090240.

The previous prime is 145093906973. The next prime is 145093906987. The reversal of 145093906978 is 879609390541.

It can be written as a sum of positive squares in 4 ways, for example, as 127222762489 + 17871144489 = 356683^2 + 133683^2 .

It is not an unprimeable number, because it can be changed into a prime (145093906973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563313 + ... + 779428.

Almost surely, 2^145093906978 is an apocalyptic number.

145093906978 is a deficient number, since it is larger than the sum of its proper divisors (75185603606).

145093906978 is a wasteful number, since it uses less digits than its factorization.

145093906978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343397.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 145093906978 in words is "one hundred forty-five billion, ninety-three million, nine hundred six thousand, nine hundred seventy-eight".