247138370038 has 16 divisors (see below), whose sum is σ = 423951494400. Its totient is φ = 105845015016.

The previous prime is 247138369999. The next prime is 247138370107. The reversal of 247138370038 is 830073831742.

It is a super-2 number, since 2×247138370038² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 247138370038.

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, 5930938 + ... + 5972461.

It is an arithmetic number, because the mean of its divisors is an integer number (26496968400).

Almost surely, 2^247138370038 is an apocalyptic number.

247138370038 is a deficient number, since it is larger than the sum of its proper divisors (176813124362).

247138370038 is a wasteful number, since it uses less digits than its factorization.

247138370038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11904891.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 247138370038 in words is "two hundred forty-seven billion, one hundred thirty-eight million, three hundred seventy thousand, thirty-eight".