72699067701 has 32 divisors (see below), whose sum is σ = 117620778240. Its totient is φ = 44107761600.

The previous prime is 72699067663. The next prime is 72699067709. The reversal of 72699067701 is 10776099627.

It is a happy number.

It is not a de Polignac number, because 72699067701 - 2¹¹ = 72699065653 is a prime.

It is a super-3 number, since 3×72699067701³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72699067709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1433670 + ... + 1483511.

It is an arithmetic number, because the mean of its divisors is an integer number (3675649320).

Almost surely, 2^72699067701 is an apocalyptic number.

72699067701 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

72699067701 is a deficient number, since it is larger than the sum of its proper divisors (44921710539).

72699067701 is a wasteful number, since it uses less digits than its factorization.

72699067701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917274 (or 2917268 counting only the distinct ones).

The product of its (nonzero) digits is 2000376, while the sum is 54.

The spelling of 72699067701 in words is "seventy-two billion, six hundred ninety-nine million, sixty-seven thousand, seven hundred one".