70522400477621 has 4 divisors (see below), whose sum is σ = 70525005017772. Its totient is φ = 70519795937472.

The previous prime is 70522400477597. The next prime is 70522400477663. The reversal of 70522400477621 is 12677400422507.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65507801628721 + 5014598848900 = 8093689^2 + 2239330^2 .

It is a cyclic number.

It is not a de Polignac number, because 70522400477621 - 2¹⁰ = 70522400476597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70522400477821) 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, 1302229460 + ... + 1302283613.

It is an arithmetic number, because the mean of its divisors is an integer number (17631251254443).

Almost surely, 2^{70522400477621} is an apocalyptic number.

It is an amenable number.

70522400477621 is a deficient number, since it is larger than the sum of its proper divisors (2604540151).

70522400477621 is a wasteful number, since it uses less digits than its factorization.

70522400477621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604540150.

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 70522400477621 in words is "seventy trillion, five hundred twenty-two billion, four hundred million, four hundred seventy-seven thousand, six hundred twenty-one".