61972182419 has 16 divisors (see below), whose sum is σ = 70975157760. Its totient is φ = 53006788800.

The previous prime is 61972182401. The next prime is 61972182427. The reversal of 61972182419 is 91428127916.

It is a happy number.

It is not a de Polignac number, because 61972182419 - 2¹⁶ = 61972116883 is a prime.

It is a super-2 number, since 2×61972182419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61972182439) 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, 7006802 + ... + 7015640.

It is an arithmetic number, because the mean of its divisors is an integer number (4435947360).

Almost surely, 2^61972182419 is an apocalyptic number.

61972182419 is a deficient number, since it is larger than the sum of its proper divisors (9002975341).

61972182419 is a wasteful number, since it uses less digits than its factorization.

61972182419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10850.

The product of its digits is 435456, while the sum is 50.

The spelling of 61972182419 in words is "sixty-one billion, nine hundred seventy-two million, one hundred eighty-two thousand, four hundred nineteen".