677455229420 has 24 divisors (see below), whose sum is σ = 1449498549744. Its totient is φ = 265869221696.

The previous prime is 677455229371. The next prime is 677455229441. The reversal of 677455229420 is 24922554776.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319553294 + ... + 319555413.

It is an arithmetic number, because the mean of its divisors is an integer number (60395772906).

Almost surely, 2^677455229420 is an apocalyptic number.

It is an amenable number.

677455229420 is an abundant number, since it is smaller than the sum of its proper divisors (772043320324).

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

677455229420 is a wasteful number, since it uses less digits than its factorization.

677455229420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639108769 (or 639108767 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 677455229420 in words is "six hundred seventy-seven billion, four hundred fifty-five million, two hundred twenty-nine thousand, four hundred twenty".