145522491877 has 48 divisors (see below), whose sum is σ = 184357721088. Its totient is φ = 114053184000.

The previous prime is 145522491853. The next prime is 145522491901. The reversal of 145522491877 is 778194225541.

It is an interprime number because it is at equal distance from previous prime (145522491853) and next prime (145522491901).

It is not a de Polignac number, because 145522491877 - 2²⁷ = 145388274149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145522491817) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23143428 + ... + 23149714.

It is an arithmetic number, because the mean of its divisors is an integer number (3840785856).

Almost surely, 2^145522491877 is an apocalyptic number.

145522491877 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

145522491877 is a deficient number, since it is larger than the sum of its proper divisors (38835229211).

145522491877 is a wasteful number, since it uses less digits than its factorization.

145522491877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106 (or 7099 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 55.

The spelling of 145522491877 in words is "one hundred forty-five billion, five hundred twenty-two million, four hundred ninety-one thousand, eight hundred seventy-seven".