61032012621 has 8 divisors (see below), whose sum is σ = 81461950944. Its totient is φ = 40645041360.

The previous prime is 61032012607. The next prime is 61032012637. The reversal of 61032012621 is 12621023016.

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

It is not a de Polignac number, because 61032012621 - 2⁶ = 61032012557 is a prime.

It is a super-3 number, since 3×61032012621³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61032012591 and 61032012600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61032012661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10738450 + ... + 10744131.

It is an arithmetic number, because the mean of its divisors is an integer number (10182743868).

Almost surely, 2^61032012621 is an apocalyptic number.

It is an amenable number.

61032012621 is a deficient number, since it is larger than the sum of its proper divisors (20429938323).

61032012621 is a wasteful number, since it uses less digits than its factorization.

61032012621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21483531.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 61032012621 its reverse (12621023016), we get a palindrome (73653035637).

The spelling of 61032012621 in words is "sixty-one billion, thirty-two million, twelve thousand, six hundred twenty-one".