153878772507 has 4 divisors (see below), whose sum is σ = 205171696680. Its totient is φ = 102585848336.

The previous prime is 153878772479. The next prime is 153878772527. The reversal of 153878772507 is 705277878351.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 153878772507 - 2¹¹ = 153878770459 is a prime.

It is a super-2 number, since 2×153878772507² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153878772527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25646462082 + ... + 25646462087.

It is an arithmetic number, because the mean of its divisors is an integer number (51292924170).

Almost surely, 2^153878772507 is an apocalyptic number.

153878772507 is a deficient number, since it is larger than the sum of its proper divisors (51292924173).

153878772507 is an equidigital number, since it uses as much as digits as its factorization.

153878772507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51292924172.

The product of its (nonzero) digits is 23049600, while the sum is 60.

The spelling of 153878772507 in words is "one hundred fifty-three billion, eight hundred seventy-eight million, seven hundred seventy-two thousand, five hundred seven".