73875869513855 has 4 divisors (see below), whose sum is σ = 88651043416632. Its totient is φ = 59100695611080.

The previous prime is 73875869513717. The next prime is 73875869513899. The reversal of 73875869513855 is 55831596857837.

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

It is not a de Polignac number, because 73875869513855 - 2²² = 73875865319551 is a prime.

It is a super-2 number, since 2×73875869513855² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73875869513855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7387586951381 + ... + 7387586951390.

It is an arithmetic number, because the mean of its divisors is an integer number (22162760854158).

Almost surely, 2^{73875869513855} is an apocalyptic number.

73875869513855 is a deficient number, since it is larger than the sum of its proper divisors (14775173902777).

73875869513855 is a wasteful number, since it uses less digits than its factorization.

73875869513855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14775173902776.

The product of its digits is 7620480000, while the sum is 80.

The spelling of 73875869513855 in words is "seventy-three trillion, eight hundred seventy-five billion, eight hundred sixty-nine million, five hundred thirteen thousand, eight hundred fifty-five".