61068840502 has 4 divisors (see below), whose sum is σ = 91603260756. Its totient is φ = 30534420250.

The previous prime is 61068840491. The next prime is 61068840541. The reversal of 61068840502 is 20504886016.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×61068840502² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15267210124 + ... + 15267210127.

It is an arithmetic number, because the mean of its divisors is an integer number (22900815189).

Almost surely, 2^61068840502 is an apocalyptic number.

61068840502 is a deficient number, since it is larger than the sum of its proper divisors (30534420254).

61068840502 is a wasteful number, since it uses less digits than its factorization.

61068840502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30534420253.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 61068840502 in words is "sixty-one billion, sixty-eight million, eight hundred forty thousand, five hundred two".