73678986229749 has 16 divisors (see below), whose sum is σ = 99734605240320. Its totient is φ = 48372905603120.

The previous prime is 73678986229741. The next prime is 73678986229759. The reversal of 73678986229749 is 94792268987637.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 73678986229749 - 2³ = 73678986229741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73678986229741) 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, 194800209 + ... + 195178070.

It is an arithmetic number, because the mean of its divisors is an integer number (6233412827520).

Almost surely, 2^{73678986229749} is an apocalyptic number.

It is an amenable number.

73678986229749 is a deficient number, since it is larger than the sum of its proper divisors (26055619010571).

73678986229749 is a wasteful number, since it uses less digits than its factorization.

73678986229749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389979240.

The product of its digits is 27653197824, while the sum is 87.

The spelling of 73678986229749 in words is "seventy-three trillion, six hundred seventy-eight billion, nine hundred eighty-six million, two hundred twenty-nine thousand, seven hundred forty-nine".