73375638155 has 4 divisors (see below), whose sum is σ = 88050765792. Its totient is φ = 58700510520.

The previous prime is 73375638137. The next prime is 73375638163. The reversal of 73375638155 is 55183657337.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55183657337 = 1193 ⋅46256209.

It is not a de Polignac number, because 73375638155 - 2¹⁰ = 73375637131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73375638097 and 73375638106.

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, 7337563811 + ... + 7337563820.

It is an arithmetic number, because the mean of its divisors is an integer number (22012691448).

Almost surely, 2^73375638155 is an apocalyptic number.

73375638155 is a deficient number, since it is larger than the sum of its proper divisors (14675127637).

73375638155 is a wasteful number, since it uses less digits than its factorization.

73375638155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14675127636.

The product of its digits is 7938000, while the sum is 53.

The spelling of 73375638155 in words is "seventy-three billion, three hundred seventy-five million, six hundred thirty-eight thousand, one hundred fifty-five".