73690399487 has 2 divisors, whose sum is σ = 73690399488. Its totient is φ = 73690399486.

The previous prime is 73690399483. The next prime is 73690399567. The reversal of 73690399487 is 78499309637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73690399487 - 2² = 73690399483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73690399481) by changing a digit.

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 as a sum of consecutive naturals, namely, 36845199743 + 36845199744.

It is an arithmetic number, because the mean of its divisors is an integer number (36845199744).

Almost surely, 2^73690399487 is an apocalyptic number.

73690399487 is a deficient number, since it is larger than the sum of its proper divisors (1).

73690399487 is an equidigital number, since it uses as much as digits as its factorization.

73690399487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61725888, while the sum is 65.

The spelling of 73690399487 in words is "seventy-three billion, six hundred ninety million, three hundred ninety-nine thousand, four hundred eighty-seven".