61450362812 has 12 divisors (see below), whose sum is σ = 111246346680. Its totient is φ = 29665692336.

The previous prime is 61450362803. The next prime is 61450362821. The reversal of 61450362812 is 21826305416.

It is an interprime number because it is at equal distance from previous prime (61450362803) and next prime (61450362821).

It is a super-2 number, since 2×61450362812² (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 in 3 ways as a sum of consecutive naturals, for example, 264872138 + ... + 264872369.

It is an arithmetic number, because the mean of its divisors is an integer number (9270528890).

Almost surely, 2^61450362812 is an apocalyptic number.

It is an amenable number.

61450362812 is a deficient number, since it is larger than the sum of its proper divisors (49795983868).

61450362812 is a wasteful number, since it uses less digits than its factorization.

61450362812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529744540 (or 529744538 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 61450362812 in words is "sixty-one billion, four hundred fifty million, three hundred sixty-two thousand, eight hundred twelve".