61725950390 has 48 divisors (see below), whose sum is σ = 124191916416. Its totient is φ = 22055904000.

The previous prime is 61725950383. The next prime is 61725950441. The reversal of 61725950390 is 9305952716.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536711 + ... + 641490.

It is an arithmetic number, because the mean of its divisors is an integer number (2587331592).

Almost surely, 2^61725950390 is an apocalyptic number.

61725950390 is an abundant number, since it is smaller than the sum of its proper divisors (62465966026).

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

61725950390 is a wasteful number, since it uses less digits than its factorization.

61725950390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178265 (or 1178252 counting only the distinct ones).

The product of its (nonzero) digits is 510300, while the sum is 47.

The spelling of 61725950390 in words is "sixty-one billion, seven hundred twenty-five million, nine hundred fifty thousand, three hundred ninety".