10777167421 has 2 divisors, whose sum is σ = 10777167422. Its totient is φ = 10777167420.

The previous prime is 10777167409. The next prime is 10777167433. The reversal of 10777167421 is 12476177701.

It is a balanced prime because it is at equal distance from previous prime (10777167409) and next prime (10777167433).

It can be written as a sum of positive squares in only one way, i.e., 10709352196 + 67815225 = 103486^2 + 8235^2 .

It is a cyclic number.

It is not a de Polignac number, because 10777167421 - 2⁵ = 10777167389 is a prime.

It is a super-2 number, since 2×10777167421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10777167451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388583710 + 5388583711.

It is an arithmetic number, because the mean of its divisors is an integer number (5388583711).

Almost surely, 2^10777167421 is an apocalyptic number.

It is an amenable number.

10777167421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10777167421 is an equidigital number, since it uses as much as digits as its factorization.

10777167421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115248, while the sum is 43.

The spelling of 10777167421 in words is "ten billion, seven hundred seventy-seven million, one hundred sixty-seven thousand, four hundred twenty-one".