61777300343 has 8 divisors (see below), whose sum is σ = 69037160976. Its totient is φ = 54791396800.

The previous prime is 61777300313. The next prime is 61777300367. The reversal of 61777300343 is 34300377716.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61777300343 - 2¹⁰ = 61777299319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61777300343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61777300313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68488796 + ... + 68489697.

It is an arithmetic number, because the mean of its divisors is an integer number (8629645122).

Almost surely, 2^61777300343 is an apocalyptic number.

61777300343 is a deficient number, since it is larger than the sum of its proper divisors (7259860633).

61777300343 is a wasteful number, since it uses less digits than its factorization.

61777300343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136978545.

The product of its (nonzero) digits is 222264, while the sum is 41.

The spelling of 61777300343 in words is "sixty-one billion, seven hundred seventy-seven million, three hundred thousand, three hundred forty-three".