61402941570 has 32 divisors (see below), whose sum is σ = 147430018368. Its totient is φ = 16367122368.

The previous prime is 61402941541. The next prime is 61402941601. The reversal of 61402941570 is 7514920416.

It is a Curzon number.

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, 365629 + ... + 506448.

It is an arithmetic number, because the mean of its divisors is an integer number (4607188074).

Almost surely, 2^61402941570 is an apocalyptic number.

61402941570 is an abundant number, since it is smaller than the sum of its proper divisors (86027076798).

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

61402941570 is a wasteful number, since it uses less digits than its factorization.

61402941570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874434.

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 61402941570 in words is "sixty-one billion, four hundred two million, nine hundred forty-one thousand, five hundred seventy".