61672651384 has 64 divisors (see below), whose sum is σ = 120375590400. Its totient is φ = 29600200704.

The previous prime is 61672651351. The next prime is 61672651387. The reversal of 61672651384 is 48315627616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61672651387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10356952 + ... + 10362904.

It is an arithmetic number, because the mean of its divisors is an integer number (1880868600).

Almost surely, 2^61672651384 is an apocalyptic number.

It is an amenable number.

61672651384 is a deficient number, since it is larger than the sum of its proper divisors (58702939016).

61672651384 is a wasteful number, since it uses less digits than its factorization.

61672651384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 6528 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 61672651384 in words is "sixty-one billion, six hundred seventy-two million, six hundred fifty-one thousand, three hundred eighty-four".