145778079215 has 32 divisors (see below), whose sum is σ = 185932074240. Its totient is φ = 109413158400.

The previous prime is 145778079191. The next prime is 145778079263. The reversal of 145778079215 is 512970877541.

It is not a de Polignac number, because 145778079215 - 2⁶ = 145778079151 is a prime.

It is a super-2 number, since 2×145778079215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6098567 + ... + 6122423.

It is an arithmetic number, because the mean of its divisors is an integer number (5810377320).

Almost surely, 2^145778079215 is an apocalyptic number.

145778079215 is a deficient number, since it is larger than the sum of its proper divisors (40153995025).

145778079215 is a wasteful number, since it uses less digits than its factorization.

145778079215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24503.

The product of its (nonzero) digits is 4939200, while the sum is 56.

The spelling of 145778079215 in words is "one hundred forty-five billion, seven hundred seventy-eight million, seventy-nine thousand, two hundred fifteen".