78862247650137 has 32 divisors (see below), whose sum is σ = 122625777376000. Its totient is φ = 45063309844224.

The previous prime is 78862247650117. The next prime is 78862247650141. The reversal of 78862247650137 is 73105674226887.

It is not a de Polignac number, because 78862247650137 - 2¹⁸ = 78862247387993 is a prime.

It is a super-2 number, since 2×78862247650137² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78862247650117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57394689 + ... + 58752657.

It is an arithmetic number, because the mean of its divisors is an integer number (3832055543000).

Almost surely, 2^{78862247650137} is an apocalyptic number.

It is an amenable number.

78862247650137 is a deficient number, since it is larger than the sum of its proper divisors (43763529725863).

78862247650137 is a wasteful number, since it uses less digits than its factorization.

78862247650137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414430 (or 1414416 counting only the distinct ones).

The product of its (nonzero) digits is 189665280, while the sum is 66.

The spelling of 78862247650137 in words is "seventy-eight trillion, eight hundred sixty-two billion, two hundred forty-seven million, six hundred fifty thousand, one hundred thirty-seven".