1229649797377 has 4 divisors (see below), whose sum is σ = 1229703369520. Its totient is φ = 1229596225236.

The previous prime is 1229649797371. The next prime is 1229649797399. The reversal of 1229649797377 is 7737979469221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1229649797377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1229649797371) 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, 26751627 + ... + 26797552.

It is an arithmetic number, because the mean of its divisors is an integer number (307425842380).

Almost surely, 2^{1229649797377} is an apocalyptic number.

It is an amenable number.

1229649797377 is a deficient number, since it is larger than the sum of its proper divisors (53572143).

1229649797377 is an equidigital number, since it uses as much as digits as its factorization.

1229649797377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53572142.

The product of its digits is 504094752, while the sum is 73.

The spelling of 1229649797377 in words is "one trillion, two hundred twenty-nine billion, six hundred forty-nine million, seven hundred ninety-seven thousand, three hundred seventy-seven".