145776723290 has 64 divisors (see below), whose sum is σ = 304060417920. Its totient is φ = 49731901440.

The previous prime is 145776723271. The next prime is 145776723293. The reversal of 145776723290 is 92327677541.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (145776723293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 460781 + ... + 709839.

It is an arithmetic number, because the mean of its divisors is an integer number (4750944030).

Almost surely, 2^145776723290 is an apocalyptic number.

145776723290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145776723290 is an abundant number, since it is smaller than the sum of its proper divisors (158283694630).

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

145776723290 is a wasteful number, since it uses less digits than its factorization.

145776723290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249407.

The product of its (nonzero) digits is 4445280, while the sum is 53.

The spelling of 145776723290 in words is "one hundred forty-five billion, seven hundred seventy-six million, seven hundred twenty-three thousand, two hundred ninety".