2219557969977 has 8 divisors (see below), whose sum is σ = 2985600101664. Its totient is φ = 1466610575808.

The previous prime is 2219557969961. The next prime is 2219557969997. The reversal of 2219557969977 is 7799697559122.

It is a happy number.

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

It is not a de Polignac number, because 2219557969977 - 2⁴ = 2219557969961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2219557969907) 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, 3273683983 + ... + 3273684660.

It is an arithmetic number, because the mean of its divisors is an integer number (373200012708).

Almost surely, 2^{2219557969977} is an apocalyptic number.

It is an amenable number.

2219557969977 is a deficient number, since it is larger than the sum of its proper divisors (766042131687).

2219557969977 is a wasteful number, since it uses less digits than its factorization.

2219557969977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547368759.

The product of its digits is 1350253800, while the sum is 78.

The spelling of 2219557969977 in words is "two trillion, two hundred nineteen billion, five hundred fifty-seven million, nine hundred sixty-nine thousand, nine hundred seventy-seven".