70745791553 has 2 divisors, whose sum is σ = 70745791554. Its totient is φ = 70745791552.

The previous prime is 70745791541. The next prime is 70745791619. The reversal of 70745791553 is 35519754707.

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., 63833033104 + 6912758449 = 252652^2 + 83143^2 .

It is an emirp because it is prime and its reverse (35519754707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70745791553 - 2⁶ = 70745791489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70745791495 and 70745791504.

It is not a weakly prime, because it can be changed into another prime (70745761553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35372895776 + 35372895777.

It is an arithmetic number, because the mean of its divisors is an integer number (35372895777).

Almost surely, 2^70745791553 is an apocalyptic number.

It is an amenable number.

70745791553 is a deficient number, since it is larger than the sum of its proper divisors (1).

70745791553 is an equidigital number, since it uses as much as digits as its factorization.

70745791553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4630500, while the sum is 53.

The spelling of 70745791553 in words is "seventy billion, seven hundred forty-five million, seven hundred ninety-one thousand, five hundred fifty-three".