58172820465 has 16 divisors (see below), whose sum is σ = 94197918528. Its totient is φ = 30651702336.

The previous prime is 58172820463. The next prime is 58172820527. The reversal of 58172820465 is 56402827185.

It is not a de Polignac number, because 58172820465 - 2¹ = 58172820463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (58172820463) 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, 23361334 + ... + 23363823.

It is an arithmetic number, because the mean of its divisors is an integer number (5887369908).

Almost surely, 2^58172820465 is an apocalyptic number.

It is an amenable number.

58172820465 is a deficient number, since it is larger than the sum of its proper divisors (36025098063).

58172820465 is a wasteful number, since it uses less digits than its factorization.

58172820465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46725248.

The product of its (nonzero) digits is 1075200, while the sum is 48.

It can be divided in two parts, 5817 and 2820465, that added together give a palindrome (2826282).

The spelling of 58172820465 in words is "fifty-eight billion, one hundred seventy-two million, eight hundred twenty thousand, four hundred sixty-five".