61733428465 has 16 divisors (see below), whose sum is σ = 78458067072. Its totient is φ = 46469611264.

The previous prime is 61733428433. The next prime is 61733428483. The reversal of 61733428465 is 56482433716.

It is a cyclic number.

It is not a de Polignac number, because 61733428465 - 2⁵ = 61733428433 is a prime.

It is a super-3 number, since 3×61733428465³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243492 + ... + 427498.

It is an arithmetic number, because the mean of its divisors is an integer number (4903629192).

Almost surely, 2^61733428465 is an apocalyptic number.

It is an amenable number.

61733428465 is a deficient number, since it is larger than the sum of its proper divisors (16724638607).

61733428465 is a wasteful number, since it uses less digits than its factorization.

61733428465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187976.

The product of its digits is 2903040, while the sum is 49.

The spelling of 61733428465 in words is "sixty-one billion, seven hundred thirty-three million, four hundred twenty-eight thousand, four hundred sixty-five".