70724028469 has 2 divisors, whose sum is σ = 70724028470. Its totient is φ = 70724028468.

The previous prime is 70724028451. The next prime is 70724028539. The reversal of 70724028469 is 96482042707.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64429668900 + 6294359569 = 253830^2 + 79337^2 .

It is a cyclic number.

It is not a de Polignac number, because 70724028469 - 2⁵ = 70724028437 is a prime.

It is a super-2 number, since 2×70724028469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70724028409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35362014234 + 35362014235.

It is an arithmetic number, because the mean of its divisors is an integer number (35362014235).

Almost surely, 2^70724028469 is an apocalyptic number.

It is an amenable number.

70724028469 is a deficient number, since it is larger than the sum of its proper divisors (1).

70724028469 is an equidigital number, since it uses as much as digits as its factorization.

70724028469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 70724028469 in words is "seventy billion, seven hundred twenty-four million, twenty-eight thousand, four hundred sixty-nine".