947423671838 has 16 divisors (see below), whose sum is σ = 1647030288384. Its totient is φ = 400319860920.

The previous prime is 947423671829. The next prime is 947423671841. The reversal of 947423671838 is 838176324749.

It is a super-2 number, since 2×947423671838² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476570270 + ... + 476572257.

It is an arithmetic number, because the mean of its divisors is an integer number (102939393024).

Almost surely, 2^947423671838 is an apocalyptic number.

947423671838 is a deficient number, since it is larger than the sum of its proper divisors (699606616546).

947423671838 is a wasteful number, since it uses less digits than its factorization.

947423671838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953142607.

The product of its digits is 48771072, while the sum is 62.

The spelling of 947423671838 in words is "nine hundred forty-seven billion, four hundred twenty-three million, six hundred seventy-one thousand, eight hundred thirty-eight".