61863773662 has 16 divisors (see below), whose sum is σ = 96153311232. Its totient is φ = 29820258360.

The previous prime is 61863773651. The next prime is 61863773669. The reversal of 61863773662 is 26637736816.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61863773669) 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, 1880658 + ... + 1913269.

It is an arithmetic number, because the mean of its divisors is an integer number (6009581952).

Almost surely, 2^61863773662 is an apocalyptic number.

61863773662 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

61863773662 is a deficient number, since it is larger than the sum of its proper divisors (34289537570).

61863773662 is a wasteful number, since it uses less digits than its factorization.

61863773662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794223.

The product of its digits is 9144576, while the sum is 55.

The spelling of 61863773662 in words is "sixty-one billion, eight hundred sixty-three million, seven hundred seventy-three thousand, six hundred sixty-two".