61622782378822 has 8 divisors (see below), whose sum is σ = 105639055506576. Its totient is φ = 26409763876632.

The previous prime is 61622782378769. The next prime is 61622782378823. The reversal of 61622782378822 is 22887328722616.

It is a happy number.

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

It is a super-2 number, since 2×61622782378822² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61622782378823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200813656373 + ... + 2200813656400.

It is an arithmetic number, because the mean of its divisors is an integer number (13204881938322).

Almost surely, 2^{61622782378822} is an apocalyptic number.

61622782378822 is a deficient number, since it is larger than the sum of its proper divisors (44016273127754).

61622782378822 is a wasteful number, since it uses less digits than its factorization.

61622782378822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401627312782.

The product of its digits is 86704128, while the sum is 64.

The spelling of 61622782378822 in words is "sixty-one trillion, six hundred twenty-two billion, seven hundred eighty-two million, three hundred seventy-eight thousand, eight hundred twenty-two".