61642033534 has 8 divisors (see below), whose sum is σ = 92485434600. Its totient is φ = 30813555336.

The previous prime is 61642033493. The next prime is 61642033543. The reversal of 61642033534 is 43533024616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×61642033534³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61642033493 and 61642033502.

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, 3720384 + ... + 3736915.

It is an arithmetic number, because the mean of its divisors is an integer number (11560679325).

Almost surely, 2^61642033534 is an apocalyptic number.

61642033534 is a deficient number, since it is larger than the sum of its proper divisors (30843401066).

61642033534 is a wasteful number, since it uses less digits than its factorization.

61642033534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461434.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 61642033534 in words is "sixty-one billion, six hundred forty-two million, thirty-three thousand, five hundred thirty-four".