61217858002 has 16 divisors (see below), whose sum is σ = 105105627072. Its totient is φ = 26196042960.

The previous prime is 61217857997. The next prime is 61217858027. The reversal of 61217858002 is 20085871216.

It is a super-2 number, since 2×61217858002² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3339024 + ... + 3357307.

It is an arithmetic number, because the mean of its divisors is an integer number (6569101692).

Almost surely, 2^61217858002 is an apocalyptic number.

61217858002 is a deficient number, since it is larger than the sum of its proper divisors (43887769070).

61217858002 is a wasteful number, since it uses less digits than its factorization.

61217858002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6696993.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 61217858002 in words is "sixty-one billion, two hundred seventeen million, eight hundred fifty-eight thousand, two".