61748951651 has 8 divisors (see below), whose sum is σ = 61807022784. Its totient is φ = 61690911040.

The previous prime is 61748951629. The next prime is 61748951683. The reversal of 61748951651 is 15615984716.

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

It is a cyclic number.

It is not a de Polignac number, because 61748951651 - 2¹⁴ = 61748935267 is a prime.

It is a super-3 number, since 3×61748951651³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61748951593 and 61748951602.

It is not an unprimeable number, because it can be changed into a prime (61748951951) 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, 6088781 + ... + 6098913.

It is an arithmetic number, because the mean of its divisors is an integer number (7725877848).

Almost surely, 2^61748951651 is an apocalyptic number.

61748951651 is a deficient number, since it is larger than the sum of its proper divisors (58071133).

61748951651 is a wasteful number, since it uses less digits than its factorization.

61748951651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261.

The product of its digits is 1814400, while the sum is 53.

The spelling of 61748951651 in words is "sixty-one billion, seven hundred forty-eight million, nine hundred fifty-one thousand, six hundred fifty-one".