145842039979 has 16 divisors (see below), whose sum is σ = 154009636480. Its totient is φ = 137724312960.

The previous prime is 145842039977. The next prime is 145842040021. The reversal of 145842039979 is 979930248541.

It is a cyclic number.

It is not a de Polignac number, because 145842039979 - 2¹ = 145842039977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145842039977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8049859 + ... + 8067955.

It is an arithmetic number, because the mean of its divisors is an integer number (9625602280).

Almost surely, 2^145842039979 is an apocalyptic number.

145842039979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

145842039979 is a deficient number, since it is larger than the sum of its proper divisors (8167596501).

145842039979 is a wasteful number, since it uses less digits than its factorization.

145842039979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19450.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 145842039979 in words is "one hundred forty-five billion, eight hundred forty-two million, thirty-nine thousand, nine hundred seventy-nine".