10777437333421 has 4 divisors (see below), whose sum is σ = 11757204363744. Its totient is φ = 9797670303100.

The previous prime is 10777437333413. The next prime is 10777437333517. The reversal of 10777437333421 is 12433373477701.

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 not a de Polignac number, because 10777437333421 - 2³ = 10777437333413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10777437333821) 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, 489883515145 + ... + 489883515166.

It is an arithmetic number, because the mean of its divisors is an integer number (2939301090936).

Almost surely, 2^{10777437333421} is an apocalyptic number.

10777437333421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10777437333421 is a deficient number, since it is larger than the sum of its proper divisors (979767030323).

10777437333421 is an equidigital number, since it uses as much as digits as its factorization.

10777437333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979767030322.

The product of its (nonzero) digits is 6223392, while the sum is 52.

The spelling of 10777437333421 in words is "ten trillion, seven hundred seventy-seven billion, four hundred thirty-seven million, three hundred thirty-three thousand, four hundred twenty-one".