69612000421 has 2 divisors, whose sum is σ = 69612000422. Its totient is φ = 69612000420.

The previous prime is 69612000391. The next prime is 69612000457. The reversal of 69612000421 is 12400021696.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46919892100 + 22692108321 = 216610^2 + 150639^2 .

It is a cyclic number.

It is not a de Polignac number, because 69612000421 - 2⁵ = 69612000389 is a prime.

It is a super-2 number, since 2×69612000421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34806000210 + 34806000211.

It is an arithmetic number, because the mean of its divisors is an integer number (34806000211).

Almost surely, 2^69612000421 is an apocalyptic number.

It is an amenable number.

69612000421 is a deficient number, since it is larger than the sum of its proper divisors (1).

69612000421 is an equidigital number, since it uses as much as digits as its factorization.

69612000421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 69612000421 in words is "sixty-nine billion, six hundred twelve million, four hundred twenty-one", and thus it is an aban number.