1277368123392 has 600 divisors, whose sum is σ = 4074743168496. Its totient is φ = 399023013888.

The previous prime is 1277368123289. The next prime is 1277368123457. The reversal of 1277368123392 is 2933218637721.

It is a happy number.

1277368123392 is a `hidden beast` number, since 1 + 2 + 7 + 73 + 68 + 123 + 392 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5482266508 + ... + 5482266740.

Almost surely, 2^{1277368123392} is an apocalyptic number.

1277368123392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1277368123392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037371584248).

1277368123392 is an abundant number, since it is smaller than the sum of its proper divisors (2797375045104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1277368123392 is an frugal number, since it uses more digits than its factorization.

1277368123392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 255 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 1277368123392 in words is "one trillion, two hundred seventy-seven billion, three hundred sixty-eight million, one hundred twenty-three thousand, three hundred ninety-two".