70273172553 has 4 divisors (see below), whose sum is σ = 93697563408. Its totient is φ = 46848781700.

The previous prime is 70273172537. The next prime is 70273172581. The reversal of 70273172553 is 35527137207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35527137207 = 3 ⋅11842379069.

It is a cyclic number.

It is not a de Polignac number, because 70273172553 - 2⁴ = 70273172537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70273072553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11712195423 + ... + 11712195428.

It is an arithmetic number, because the mean of its divisors is an integer number (23424390852).

Almost surely, 2^70273172553 is an apocalyptic number.

It is an amenable number.

70273172553 is a deficient number, since it is larger than the sum of its proper divisors (23424390855).

70273172553 is a wasteful number, since it uses less digits than its factorization.

70273172553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23424390854.

The product of its (nonzero) digits is 308700, while the sum is 42.

The spelling of 70273172553 in words is "seventy billion, two hundred seventy-three million, one hundred seventy-two thousand, five hundred fifty-three".