67901278772 has 12 divisors (see below), whose sum is σ = 118850138820. Its totient is φ = 33944096256.

The previous prime is 67901278771. The next prime is 67901278871. The reversal of 67901278772 is 27787210976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 47004841636 + 20896437136 = 216806^2 + 144556^2 .

It is a super-2 number, since 2×67901278772² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67901278771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612397 + ... + 1653972.

It is an arithmetic number, because the mean of its divisors is an integer number (9904178235).

Almost surely, 2^67901278772 is an apocalyptic number.

It is an amenable number.

67901278772 is a deficient number, since it is larger than the sum of its proper divisors (50948860048).

67901278772 is a wasteful number, since it uses less digits than its factorization.

67901278772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271570 (or 3271568 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 56.

The spelling of 67901278772 in words is "sixty-seven billion, nine hundred one million, two hundred seventy-eight thousand, seven hundred seventy-two".