61426152500 has 60 divisors (see below), whose sum is σ = 134734346208. Its totient is φ = 24495900000.

The previous prime is 61426152461. The next prime is 61426152533. The reversal of 61426152500 is 525162416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 790385 + ... + 864615.

Almost surely, 2^61426152500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61426152500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67367173104).

61426152500 is an abundant number, since it is smaller than the sum of its proper divisors (73308193708).

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

61426152500 is a wasteful number, since it uses less digits than its factorization.

61426152500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74586 (or 74569 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 61426152500 in words is "sixty-one billion, four hundred twenty-six million, one hundred fifty-two thousand, five hundred".