61971482090 has 32 divisors (see below), whose sum is σ = 127587930624. Its totient is φ = 21230075520.

The previous prime is 61971482029. The next prime is 61971482093. The reversal of 61971482090 is 9028417916.

It is not an unprimeable number, because it can be changed into a prime (61971482093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273419 + ... + 445758.

It is an arithmetic number, because the mean of its divisors is an integer number (3987122832).

Almost surely, 2^61971482090 is an apocalyptic number.

61971482090 is an abundant number, since it is smaller than the sum of its proper divisors (65616448534).

61971482090 is a wasteful number, since it uses less digits than its factorization.

61971482090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720422.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 61971482090 in words is "sixty-one billion, nine hundred seventy-one million, four hundred eighty-two thousand, ninety".