145902493780 has 48 divisors (see below), whose sum is σ = 322829640000. Its totient is φ = 55236508416.

The previous prime is 145902493777. The next prime is 145902493811. The reversal of 145902493780 is 87394209541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215611 + ... + 581629.

It is an arithmetic number, because the mean of its divisors is an integer number (6725617500).

Almost surely, 2^145902493780 is an apocalyptic number.

145902493780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145902493780 is an abundant number, since it is smaller than the sum of its proper divisors (176927146220).

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

145902493780 is a wasteful number, since it uses less digits than its factorization.

145902493780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367096 (or 367094 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 145902493780 in words is "one hundred forty-five billion, nine hundred two million, four hundred ninety-three thousand, seven hundred eighty".