420072953773 has 4 divisors (see below), whose sum is σ = 458261404128. Its totient is φ = 381884503420.

The previous prime is 420072953771. The next prime is 420072953813. The reversal of 420072953773 is 377359270024.

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.

It is a cyclic number.

It is not a de Polignac number, because 420072953773 - 2¹ = 420072953771 is a prime.

It is a super-2 number, since 2×420072953773² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420072953771) 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, 19094225161 + ... + 19094225182.

It is an arithmetic number, because the mean of its divisors is an integer number (114565351032).

Almost surely, 2^420072953773 is an apocalyptic number.

It is an amenable number.

420072953773 is a deficient number, since it is larger than the sum of its proper divisors (38188450355).

420072953773 is a wasteful number, since it uses less digits than its factorization.

420072953773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38188450354.

The product of its (nonzero) digits is 2222640, while the sum is 49.

The spelling of 420072953773 in words is "four hundred twenty billion, seventy-two million, nine hundred fifty-three thousand, seven hundred seventy-three".