73077261326840 has 32 divisors (see below), whose sum is σ = 164500996242960. Its totient is φ = 29217187507200.

The previous prime is 73077261326837. The next prime is 73077261326851. The reversal of 73077261326840 is 4862316277037.

It is a happy number.

It is a super-2 number, since 2×73077261326840² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 428570681 + ... + 428741160.

Almost surely, 2^{73077261326840} is an apocalyptic number.

It is an amenable number.

73077261326840 is an abundant number, since it is smaller than the sum of its proper divisors (91423734916120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73077261326840 is a wasteful number, since it uses less digits than its factorization.

73077261326840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857313983 (or 857313979 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 56.

The spelling of 73077261326840 in words is "seventy-three trillion, seventy-seven billion, two hundred sixty-one million, three hundred twenty-six thousand, eight hundred forty".