67077621555772 has 48 divisors (see below), whose sum is σ = 118533000015360. Its totient is φ = 33212322662400.

The previous prime is 67077621555751. The next prime is 67077621555821. The reversal of 67077621555772 is 27755512677076.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67077621555698 and 67077621555707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073777683 + ... + 1073840149.

It is an arithmetic number, because the mean of its divisors is an integer number (2469437500320).

Almost surely, 2^{67077621555772} is an apocalyptic number.

It is an amenable number.

67077621555772 is a deficient number, since it is larger than the sum of its proper divisors (51455378459588).

67077621555772 is a wasteful number, since it uses less digits than its factorization.

67077621555772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67522 (or 67520 counting only the distinct ones).

The product of its (nonzero) digits is 302526000, while the sum is 67.

The spelling of 67077621555772 in words is "sixty-seven trillion, seventy-seven billion, six hundred twenty-one million, five hundred fifty-five thousand, seven hundred seventy-two".