67920783610 has 16 divisors (see below), whose sum is σ = 122261968296. Its totient is φ = 27167300608.

The previous prime is 67920783571. The next prime is 67920783611. The reversal of 67920783610 is 1638702976.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67513187889 + 407595721 = 259833^2 + 20189^2 .

It is a super-2 number, since 2×67920783610² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67920783611) 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, 193614 + ... + 416326.

Almost surely, 2^67920783610 is an apocalyptic number.

67920783610 is a deficient number, since it is larger than the sum of its proper divisors (54341184686).

67920783610 is a wasteful number, since it uses less digits than its factorization.

67920783610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253217.

The product of its (nonzero) digits is 762048, while the sum is 49.

The spelling of 67920783610 in words is "sixty-seven billion, nine hundred twenty million, seven hundred eighty-three thousand, six hundred ten".