73646781041 has 2 divisors, whose sum is σ = 73646781042. Its totient is φ = 73646781040.

The previous prime is 73646781007. The next prime is 73646781053. The reversal of 73646781041 is 14018764637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73083715600 + 563065441 = 270340^2 + 23729^2 .

It is a cyclic number.

It is not a de Polignac number, because 73646781041 - 2¹⁰ = 73646780017 is a prime.

It is not a weakly prime, because it can be changed into another prime (73646781641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36823390520 + 36823390521.

It is an arithmetic number, because the mean of its divisors is an integer number (36823390521).

Almost surely, 2^73646781041 is an apocalyptic number.

It is an amenable number.

73646781041 is a deficient number, since it is larger than the sum of its proper divisors (1).

73646781041 is an equidigital number, since it uses as much as digits as its factorization.

73646781041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 73646781041 in words is "seventy-three billion, six hundred forty-six million, seven hundred eighty-one thousand, forty-one".