47138837870 has 64 divisors (see below), whose sum is σ = 89514754560. Its totient is φ = 17837981568.

The previous prime is 47138837857. The next prime is 47138837887. The reversal of 47138837870 is 7873883174.

It is a super-2 number, since 2×47138837870² (a number of 22 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 31 ways as a sum of consecutive naturals, for example, 8853029 + ... + 8858351.

It is an arithmetic number, because the mean of its divisors is an integer number (1398668040).

Almost surely, 2^47138837870 is an apocalyptic number.

47138837870 is a deficient number, since it is larger than the sum of its proper divisors (42375916690).

47138837870 is a wasteful number, since it uses less digits than its factorization.

47138837870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 47138837870 in words is "forty-seven billion, one hundred thirty-eight million, eight hundred thirty-seven thousand, eight hundred seventy".