73948515986 has 4 divisors (see below), whose sum is σ = 110922773982. Its totient is φ = 36974257992.

The previous prime is 73948515929. The next prime is 73948515989. The reversal of 73948515986 is 68951584937.

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

It can be written as a sum of positive squares in only one way, i.e., 44202960025 + 29745555961 = 210245^2 + 172469^2 .

It is not an unprimeable number, because it can be changed into a prime (73948515989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18487128995 + ... + 18487128998.

Almost surely, 2^73948515986 is an apocalyptic number.

73948515986 is a deficient number, since it is larger than the sum of its proper divisors (36974257996).

73948515986 is a wasteful number, since it uses less digits than its factorization.

73948515986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36974257995.

The product of its digits is 65318400, while the sum is 65.

The spelling of 73948515986 in words is "seventy-three billion, nine hundred forty-eight million, five hundred fifteen thousand, nine hundred eighty-six".