672401375433 has 6 divisors (see below), whose sum is σ = 971246431194. Its totient is φ = 448267583616.

The previous prime is 672401375423. The next prime is 672401375447. The reversal of 672401375433 is 334573104276.

672401375433 is a `hidden beast` number, since 6 + 7 + 240 + 1 + 375 + 4 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 671626142784 + 775232649 = 819528^2 + 27843^2 .

It is not a de Polignac number, because 672401375433 - 2¹³ = 672401367241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672401375423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37355631960 + ... + 37355631977.

It is an arithmetic number, because the mean of its divisors is an integer number (161874405199).

Almost surely, 2^672401375433 is an apocalyptic number.

It is an amenable number.

672401375433 is a deficient number, since it is larger than the sum of its proper divisors (298845055761).

672401375433 is a wasteful number, since it uses less digits than its factorization.

672401375433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74711263943 (or 74711263940 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 45.

The spelling of 672401375433 in words is "six hundred seventy-two billion, four hundred one million, three hundred seventy-five thousand, four hundred thirty-three".