22780377501 has 32 divisors (see below), whose sum is σ = 35776942080. Its totient is φ = 12623449536.

The previous prime is 22780377491. The next prime is 22780377509. The reversal of 22780377501 is 10577308722.

It is not a de Polignac number, because 22780377501 - 2⁵ = 22780377469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780377509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1710 + ... + 213456.

It is an arithmetic number, because the mean of its divisors is an integer number (1118029440).

Almost surely, 2^22780377501 is an apocalyptic number.

22780377501 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22780377501 is a deficient number, since it is larger than the sum of its proper divisors (12996564579).

22780377501 is a wasteful number, since it uses less digits than its factorization.

22780377501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211913.

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 22780377501 in words is "twenty-two billion, seven hundred eighty million, three hundred seventy-seven thousand, five hundred one".