61408015626 has 32 divisors (see below), whose sum is σ = 126153840960. Its totient is φ = 19913198976.

The previous prime is 61408015619. The next prime is 61408015631. The reversal of 61408015626 is 62651080416.

It is a happy number.

61408015626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1917070 + ... + 1948838.

It is an arithmetic number, because the mean of its divisors is an integer number (3942307530).

Almost surely, 2^61408015626 is an apocalyptic number.

61408015626 is an abundant number, since it is smaller than the sum of its proper divisors (64745825334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61408015626 is a wasteful number, since it uses less digits than its factorization.

61408015626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40518.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 61408015626 in words is "sixty-one billion, four hundred eight million, fifteen thousand, six hundred twenty-six".