61254970990 has 16 divisors (see below), whose sum is σ = 110571302448. Its totient is φ = 24432576256.

The previous prime is 61254970981. The next prime is 61254971039. The reversal of 61254970990 is 9907945216.

61254970990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8672812 + ... + 8679871.

It is an arithmetic number, because the mean of its divisors is an integer number (6910706403).

Almost surely, 2^61254970990 is an apocalyptic number.

61254970990 is a deficient number, since it is larger than the sum of its proper divisors (49316331458).

61254970990 is a wasteful number, since it uses less digits than its factorization.

61254970990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353043.

The product of its (nonzero) digits is 1224720, while the sum is 52.

The spelling of 61254970990 in words is "sixty-one billion, two hundred fifty-four million, nine hundred seventy thousand, nine hundred ninety".