47478675642 has 32 divisors (see below), whose sum is σ = 98568161280. Its totient is φ = 15230128560.

The previous prime is 47478675631. The next prime is 47478675653. The reversal of 47478675642 is 24657687474.

It is an interprime number because it is at equal distance from previous prime (47478675631) and next prime (47478675653).

It is a super-2 number, since 2×47478675642² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 679728 + ... + 746315.

It is an arithmetic number, because the mean of its divisors is an integer number (3080255040).

Almost surely, 2^47478675642 is an apocalyptic number.

47478675642 is an abundant number, since it is smaller than the sum of its proper divisors (51089485638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47478675642 is a wasteful number, since it uses less digits than its factorization.

47478675642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426258.

The product of its digits is 63221760, while the sum is 60.

The spelling of 47478675642 in words is "forty-seven billion, four hundred seventy-eight million, six hundred seventy-five thousand, six hundred forty-two".