67263253690 has 16 divisors (see below), whose sum is σ = 123058675080. Its totient is φ = 26464230720.

The previous prime is 67263253669. The next prime is 67263253699. The reversal of 67263253690 is 9635236276.

It can be written as a sum of positive squares in 4 ways, for example, as 56158098529 + 11105155161 = 236977^2 + 105381^2 .

It is a super-2 number, since 2×67263253690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67263253699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55133205 + ... + 55134424.

Almost surely, 2^67263253690 is an apocalyptic number.

67263253690 is a deficient number, since it is larger than the sum of its proper divisors (55795421390).

67263253690 is a wasteful number, since it uses less digits than its factorization.

67263253690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110267697.

The product of its (nonzero) digits is 2449440, while the sum is 49.

The spelling of 67263253690 in words is "sixty-seven billion, two hundred sixty-three million, two hundred fifty-three thousand, six hundred ninety".