73664770413442 has 32 divisors (see below), whose sum is σ = 125997373911024. Its totient is φ = 31999019520000.

The previous prime is 73664770413431. The next prime is 73664770413449. The reversal of 73664770413442 is 24431407746637.

It can be written as a sum of positive squares in 8 ways, for example, as 11306883730041 + 62357886683401 = 3362571^2 + 7896701^2 .

It is a super-2 number, since 2×73664770413442² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73664770413449) 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, 179114442 + ... + 179525242.

Almost surely, 2^{73664770413442} is an apocalyptic number.

73664770413442 is a deficient number, since it is larger than the sum of its proper divisors (52332603497582).

73664770413442 is a wasteful number, since it uses less digits than its factorization.

73664770413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816534.

The product of its (nonzero) digits is 56899584, while the sum is 58.

The spelling of 73664770413442 in words is "seventy-three trillion, six hundred sixty-four billion, seven hundred seventy million, four hundred thirteen thousand, four hundred forty-two".