77223635854 has 32 divisors (see below), whose sum is σ = 120164466816. Its totient is φ = 37199059200.

The previous prime is 77223635843. The next prime is 77223635869. The reversal of 77223635854 is 45853632277.

It is a super-2 number, since 2×77223635854² (a number of 23 digits) contains 22 as substring.

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, 1618954 + ... + 1665970.

It is an arithmetic number, because the mean of its divisors is an integer number (3755139588).

Almost surely, 2^77223635854 is an apocalyptic number.

77223635854 is a deficient number, since it is larger than the sum of its proper divisors (42940830962).

77223635854 is a wasteful number, since it uses less digits than its factorization.

77223635854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47340.

The product of its digits is 8467200, while the sum is 52.

The spelling of 77223635854 in words is "seventy-seven billion, two hundred twenty-three million, six hundred thirty-five thousand, eight hundred fifty-four".