1642372732461 has 128 divisors (see below), whose sum is σ = 2485115043840. Its totient is φ = 959422464000.

The previous prime is 1642372732447. The next prime is 1642372732493.

1642372732461 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1642372732461 - 2⁶ = 1642372732397 is a prime.

It is a super-2 number, since 2×1642372732461² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1642372732461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642372732961) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2342899411 + ... + 2342900111.

It is an arithmetic number, because the mean of its divisors is an integer number (19414961280).

Almost surely, 2^{1642372732461} is an apocalyptic number.

It is an amenable number.

1642372732461 is a deficient number, since it is larger than the sum of its proper divisors (842742311379).

1642372732461 is a wasteful number, since it uses less digits than its factorization.

1642372732461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its digits is 2032128, while the sum is 48.

The spelling of 1642372732461 in words is "one trillion, six hundred forty-two billion, three hundred seventy-two million, seven hundred thirty-two thousand, four hundred sixty-one".