4921780501 has 48 divisors (see below), whose sum is σ = 5947257600. Its totient is φ = 4033411200.

The previous prime is 4921780489. The next prime is 4921780519. The reversal of 4921780501 is 1050871294.

It is not a de Polignac number, because 4921780501 - 2¹¹ = 4921778453 is a prime.

It is a super-2 number, since 2×4921780501² = 48447846600047622002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921780541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9097291 + ... + 9097831.

It is an arithmetic number, because the mean of its divisors is an integer number (123901200).

Almost surely, 2^4921780501 is an apocalyptic number.

It is an amenable number.

4921780501 is a deficient number, since it is larger than the sum of its proper divisors (1025477099).

4921780501 is a wasteful number, since it uses less digits than its factorization.

4921780501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 4921780501 is about 70155.4025075760. The cubic root of 4921780501 is about 1701.0121424865.

The spelling of 4921780501 in words is "four billion, nine hundred twenty-one million, seven hundred eighty thousand, five hundred one".