42656477007 has 8 divisors (see below), whose sum is σ = 56976326784. Its totient is φ = 28387139288.

The previous prime is 42656476991. The next prime is 42656477033. The reversal of 42656477007 is 70077465624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42656477007 - 2⁴ = 42656476991 is a prime.

It is a super-3 number, since 3×42656477007³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42656477047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12626043 + ... + 12629420.

It is an arithmetic number, because the mean of its divisors is an integer number (7122040848).

Almost surely, 2^42656477007 is an apocalyptic number.

42656477007 is a deficient number, since it is larger than the sum of its proper divisors (14319849777).

42656477007 is a wasteful number, since it uses less digits than its factorization.

42656477007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25256029.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 42656477007 in words is "forty-two billion, six hundred fifty-six million, four hundred seventy-seven thousand, seven".