69920549802 has 12 divisors (see below), whose sum is σ = 151494524610. Its totient is φ = 23306849928.

The previous prime is 69920549801. The next prime is 69920549819. The reversal of 69920549802 is 20894502996.

It is a happy number.

69920549802 is a `hidden beast` number, since 6 + 9 + 92 + 0 + 549 + 8 + 0 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 65689177401 + 4231372401 = 256299^2 + 65049^2 .

It is a super-2 number, since 2×69920549802² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69920549801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1942237477 + ... + 1942237512.

Almost surely, 2^69920549802 is an apocalyptic number.

69920549802 is an abundant number, since it is smaller than the sum of its proper divisors (81573974808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69920549802 is a wasteful number, since it uses less digits than its factorization.

69920549802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3884474997 (or 3884474994 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 69920549802 in words is "sixty-nine billion, nine hundred twenty million, five hundred forty-nine thousand, eight hundred two".