73470451387 has 2 divisors, whose sum is σ = 73470451388. Its totient is φ = 73470451386.

The previous prime is 73470451339. The next prime is 73470451399. The reversal of 73470451387 is 78315407437.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73470451387 - 2⁷ = 73470451259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73470451387.

It is not a weakly prime, because it can be changed into another prime (73470451987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36735225693 + 36735225694.

It is an arithmetic number, because the mean of its divisors is an integer number (36735225694).

Almost surely, 2^73470451387 is an apocalyptic number.

73470451387 is a deficient number, since it is larger than the sum of its proper divisors (1).

73470451387 is an equidigital number, since it uses as much as digits as its factorization.

73470451387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 73470451387 in words is "seventy-three billion, four hundred seventy million, four hundred fifty-one thousand, three hundred eighty-seven".