67861740261 has 32 divisors (see below), whose sum is σ = 106998312960. Its totient is φ = 37432511424.

The previous prime is 67861740259. The next prime is 67861740337. The reversal of 67861740261 is 16204716876.

It is not a de Polignac number, because 67861740261 - 2¹ = 67861740259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67861740261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67861740251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3487786 + ... + 3507188.

It is an arithmetic number, because the mean of its divisors is an integer number (3343697280).

Almost surely, 2^67861740261 is an apocalyptic number.

It is an amenable number.

67861740261 is a deficient number, since it is larger than the sum of its proper divisors (39136572699).

67861740261 is a wasteful number, since it uses less digits than its factorization.

67861740261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25185.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 67861740261 in words is "sixty-seven billion, eight hundred sixty-one million, seven hundred forty thousand, two hundred sixty-one".